diff --git a/backend/ar/eventtype_explica.json b/backend/ar/eventtype_explica.json
index 5370094a..8705a4d8 100644
--- a/backend/ar/eventtype_explica.json
+++ b/backend/ar/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/de/eventtype_explica.json b/backend/de/eventtype_explica.json
index b0f28457..715a7d69 100644
--- a/backend/de/eventtype_explica.json
+++ b/backend/de/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Hier kann man jeden Besitz des Objektes vermerken. Die Information wird \u00f6ffentlich angezeigt. F\u00fcr eine nicht-\u00f6ffentliche Eingabe k\u00f6nnen die entsprechenden Felder auf den Registerkarten \"Verwaltung\" und \"Provenienz\" verwendet werden.",
         "43": "Hier kann man jeden Verkauf des Objektes vermerken",
         "49": "Hier kann man das Verschenken eines Objektes vermerken",
-        "50": "Hier kann man das Vererben eines Objektes von einem Eigent\u00fcmer an einen Anderen vermerken"
+        "50": "Hier kann man das Vererben eines Objektes von einem Eigent\u00fcmer an einen Anderen vermerken",
+        "51": "Haupts\u00e4chlich f\u00fcr Schriftgut. Beschreibt den zentralen Gegenstand des Objektes (z.B. des Textes). Eine Stadt w\u00e4re etwa Hauptgegenstand ihrer   Gr\u00fcndungsurkunde.",
+        "52": "F\u00fcr anorganische Objekte die nicht von Menschenhand entstanden sind. Etwa unbearbeitete Steine."
     }
 }
\ No newline at end of file
diff --git a/backend/dsb/eventtype_explica.json b/backend/dsb/eventtype_explica.json
index 00e83490..34836b46 100644
--- a/backend/dsb/eventtype_explica.json
+++ b/backend/dsb/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/en/eventtype_explica.json b/backend/en/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/en/eventtype_explica.json
+++ b/backend/en/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/es/eventtype_explica.json b/backend/es/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/es/eventtype_explica.json
+++ b/backend/es/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/fr/eventtype_explica.json b/backend/fr/eventtype_explica.json
index 2f01dae1..5e1abcff 100644
--- a/backend/fr/eventtype_explica.json
+++ b/backend/fr/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Ici on peut noter chaque possession de l\u2019objet. Les informations sont affich\u00e9es publiquement. Pour une saisie non publique, les champs correspondants dans les onglets \u00ab\u00a0Gestion\u00a0\u00bb et \u00ab\u00a0Provenance\u00a0\u00bb peuvent \u00eatre utilis\u00e9s.",
         "43": "Ici on peut noter chaque vente de l\u2019objet",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/hsb/eventtype_explica.json b/backend/hsb/eventtype_explica.json
index 00e83490..34836b46 100644
--- a/backend/hsb/eventtype_explica.json
+++ b/backend/hsb/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/hu/eventtype_explica.json b/backend/hu/eventtype_explica.json
index f4ca8b8c..e0ce9b33 100644
--- a/backend/hu/eventtype_explica.json
+++ b/backend/hu/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Kinek a tulajdon\u00e1ban volt a t\u00e1rgy m\u0171t\u00e1rggy\u00e1 v\u00e1l\u00e1sa el\u0151tt? A t\u00e1rgy tulajdonosi st\u00e1tusz\u00e1nak r\u00f6gz\u00edt\u00e9s\u00e9re alkalmazand\u00f3. (ny\u00edlv\u00e1nosan l\u00e1that\u00f3), amennyiben nem szeretn\u00e9 publikusan k\u00f6zz\u00e9tenni, az inform\u00e1ci\u00f3k megad\u00e1s\u00e1hoz haszn\u00e1lja az \"nyilv\u00e1ntart\u00e1s\" \u00e9s a \"proveniencia\" alf\u00fcleket.",
         "43": "Itt r\u00f6gz\u00edthet\u0151 , hogy a t\u00e1rgyat \"mikor?\", \"hol?\" \u00e9s \"ki?\" adta el.",
         "49": "Itt lehet megadni, hogy a t\u00e1rgyat \"mikor?\", \"hol?\" \u00e9s \"ki?\" adom\u00e1nyozta.",
-        "50": "Itt lehet megadni, hogy a t\u00e1rgyat \"mikor?\", \"hol?\" \u00e9s \"ki?\" \u00f6r\u00f6k\u00f6lte."
+        "50": "Itt lehet megadni, hogy a t\u00e1rgyat \"mikor?\", \"hol?\" \u00e9s \"ki?\" \u00f6r\u00f6k\u00f6lte.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/id/eventtype_explica.json b/backend/id/eventtype_explica.json
index 709ec62e..95256542 100644
--- a/backend/id/eventtype_explica.json
+++ b/backend/id/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/it/eventtype_explica.json b/backend/it/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/it/eventtype_explica.json
+++ b/backend/it/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/iw/eventtype_explica.json b/backend/iw/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/iw/eventtype_explica.json
+++ b/backend/iw/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/nl/eventtype_explica.json b/backend/nl/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/nl/eventtype_explica.json
+++ b/backend/nl/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/pl/eventtype_explica.json b/backend/pl/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/pl/eventtype_explica.json
+++ b/backend/pl/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/pt/eventtype_explica.json b/backend/pt/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/pt/eventtype_explica.json
+++ b/backend/pt/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/ro/eventtype_explica.json b/backend/ro/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/ro/eventtype_explica.json
+++ b/backend/ro/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/ru/eventtype_explica.json b/backend/ru/eventtype_explica.json
index 4706db17..1b39db80 100644
--- a/backend/ru/eventtype_explica.json
+++ b/backend/ru/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "\u0417\u0434\u0435\u0441\u044c \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0437\u0430\u043f\u0438\u0441\u0430\u043d \u0441\u0442\u0430\u0442\u0443\u0441 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043e\u0431\u044a\u0435\u043a\u0442\u0430. \u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u0431\u0443\u0434\u0435\u0442 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430. \u0414\u043b\u044f \u0432\u0432\u043e\u0434\u0430 \"\u0441\u043a\u0440\u044b\u0442\u043e\u0439\" \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0432\u043a\u043b\u0430\u0434\u043a\u0438 \"\u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\" \u0438 \"\u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435\"",
         "43": "\u0417\u0434\u0435\u0441\u044c \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c, \u043a\u043e\u0433\u0434\u0430 \u043e\u0431\u044a\u0435\u043a\u0442 \u0431\u044b\u043b \u043f\u0440\u043e\u0434\u0430\u043d \u0438 \u043a\u0442\u043e \u0435\u0433\u043e \u043f\u0440\u043e\u0434\u0430\u043b",
         "49": "\u0417\u0434\u0435\u0441\u044c \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c, \u043a\u043e\u0433\u0434\u0430 \u043f\u0440\u0435\u0434\u043c\u0435\u0442 \u0431\u044b\u043b \u043e\u0442\u0434\u0430\u043d \u0438 \u043a\u0442\u043e \u044d\u0442\u043e \u0441\u0434\u0435\u043b\u0430\u043b.",
-        "50": "\u0417\u0434\u0435\u0441\u044c \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c, \u043a\u043e\u0433\u0434\u0430 \u043e\u0431\u044a\u0435\u043a\u0442 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0434\u0430\u043d \u043a\u043e\u043c\u0443-\u043b\u0438\u0431\u043e \u043f\u043e \u043d\u0430\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0443."
+        "50": "\u0417\u0434\u0435\u0441\u044c \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c, \u043a\u043e\u0433\u0434\u0430 \u043e\u0431\u044a\u0435\u043a\u0442 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0434\u0430\u043d \u043a\u043e\u043c\u0443-\u043b\u0438\u0431\u043e \u043f\u043e \u043d\u0430\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0443.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/tl/eventtype_explica.json b/backend/tl/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/tl/eventtype_explica.json
+++ b/backend/tl/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/tr/eventtype_explica.json b/backend/tr/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/tr/eventtype_explica.json
+++ b/backend/tr/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/uk/eventtype_explica.json b/backend/uk/eventtype_explica.json
index cffad064..85ff654b 100644
--- a/backend/uk/eventtype_explica.json
+++ b/backend/uk/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "\u0422\u0443\u0442 \u043c\u043e\u0436\u043d\u0430 \u0437\u0430\u0444\u0456\u043a\u0441\u0443\u0432\u0430\u0442\u0438 \u0441\u0442\u0430\u0442\u0443\u0441 \u0432\u043b\u0430\u0441\u043d\u043e\u0441\u0442\u0456 \u043e\u0431\u2019\u0454\u043a\u0442\u0430. \u0406\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0456\u044e \u043e\u043f\u0440\u0438\u043b\u044e\u0434\u043d\u0435\u043d\u043e. \u0414\u043b\u044f \u0432\u0432\u0435\u0434\u0435\u043d\u043d\u044f \u00ab\u043f\u0440\u0438\u0445\u043e\u0432\u0430\u043d\u043e\u0457\u00bb \u0456\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0456\u0457 \u0432\u0438\u043a\u043e\u0440\u0438\u0441\u0442\u043e\u0432\u0443\u0439\u0442\u0435 \u0432\u043a\u043b\u0430\u0434\u043a\u0438 \u00ab\u0430\u0434\u043c\u0456\u043d\u0456\u0441\u0442\u0440\u0443\u0432\u0430\u043d\u043d\u044f\u00bb \u0442\u0430 \u00ab\u043f\u043e\u0445\u043e\u0434\u0436\u0435\u043d\u043d\u044f\u00bb.",
         "43": "\u0422\u0443\u0442 \u0432\u0438 \u043c\u043e\u0436\u0435\u0442\u0435 \u0437\u0430\u0437\u043d\u0430\u0447\u0438\u0442\u0438, \u043a\u043e\u043b\u0438 \u043e\u0431'\u0454\u043a\u0442 \u0431\u0443\u0432 \u043f\u0440\u043e\u0434\u0430\u043d\u0438\u0439, \u0456 \u0445\u0442\u043e \u0439\u043e\u0433\u043e \u043f\u0440\u043e\u0434\u0430\u0432.",
         "49": "\u0422\u0443\u0442 \u043c\u043e\u0436\u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u0438, \u043a\u043e\u043b\u0438 \u0456 \u0445\u0442\u043e \u0432\u0456\u0434\u0434\u0430\u0432 \u043f\u0440\u0435\u0434\u043c\u0435\u0442.",
-        "50": "\u0422\u0443\u0442 \u0432\u0438 \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u043a\u0430\u0437\u0430\u0442\u0438, \u043a\u043e\u043b\u0438 \u043e\u0431'\u0454\u043a\u0442 \u0431\u0443\u0432 \u0443\u0441\u043f\u0430\u0434\u043a\u043e\u0432\u0430\u043d\u043e \u043a\u0438\u043c\u043e\u0441\u044c."
+        "50": "\u0422\u0443\u0442 \u0432\u0438 \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u043a\u0430\u0437\u0430\u0442\u0438, \u043a\u043e\u043b\u0438 \u043e\u0431'\u0454\u043a\u0442 \u0431\u0443\u0432 \u0443\u0441\u043f\u0430\u0434\u043a\u043e\u0432\u0430\u043d\u043e \u043a\u0438\u043c\u043e\u0441\u044c.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file
diff --git a/backend/zh/eventtype_explica.json b/backend/zh/eventtype_explica.json
index 21898f1b..8a8e163f 100644
--- a/backend/zh/eventtype_explica.json
+++ b/backend/zh/eventtype_explica.json
@@ -47,6 +47,8 @@
         "42": "Here, the ownership status of the object can be recorded. The information is published. To enter \"hidden\" information, use the \"administration\" and \"provenance\" tabs.",
         "43": "Here you can note down when the object was sold, and who sold it.",
         "49": "Here you can note down when the object was given away and who did so.",
-        "50": "Here you can note down when the object was inherited to somebody."
+        "50": "Here you can note down when the object was inherited to somebody.",
+        "51": "Mainly used for written works. Describes the central subject of the object. E.g. the founding document of a city may have that same city as its subject.",
+        "52": "For inorganic objects that were not created by humans but emerged in nature. E.g. stones."
     }
 }
\ No newline at end of file