diff --git a/de/about_presentations.php b/de/about_presentations.php
index b9a76fa..150d70c 100644
--- a/de/about_presentations.php
+++ b/de/about_presentations.php
@@ -4,3 +4,5 @@ $tlPresentations['pageDescription'] = 'Eine Liste von Präsentationen über muse
 $tlPresentations['pageKeywords'] = 'museum-digital, Präsentationen, Foliensatz, Vortrag';
 $tlPresentations['presentations_title'] = 'Präsentationen über museum-digital';
 $tlPresentations['presentations_introduction'] = 'Über die Jahre wurden viele Vorträge über die Arbeit von und an museum-digital gehalten. Hier können Sie eine Auswahl dieser Vorträge - so vorhanden mit Link zu Videos und Foliensätzen - finden.';
+$tlPresentations['date'] = 'Datum';
+$tlPresentations['open'] = 'Öffnen';
diff --git a/en/about_presentations.php b/en/about_presentations.php
index bbab7d5..af4d9c6 100644
--- a/en/about_presentations.php
+++ b/en/about_presentations.php
@@ -4,3 +4,5 @@ $tlPresentations['pageDescription'] = 'A list of presentations held about museum
 $tlPresentations['pageKeywords'] = 'museum-digital, presentation, talk, video, slides';
 $tlPresentations['presentations_title'] = 'Presentations about museum-digital';
 $tlPresentations['presentations_introduction'] = 'Over the years, a lot of presentations have been held about different aspects of museum-digital - be it the software, be it the community, or how both interact. Here you can find a selection of these talks. If available, video recordings and slides are linked.';
+$tlPresentations['date'] = 'Date';
+$tlPresentations['open'] = 'Open';
diff --git a/hu/about_presentations.php b/hu/about_presentations.php
index bbab7d5..af4d9c6 100644
--- a/hu/about_presentations.php
+++ b/hu/about_presentations.php
@@ -4,3 +4,5 @@ $tlPresentations['pageDescription'] = 'A list of presentations held about museum
 $tlPresentations['pageKeywords'] = 'museum-digital, presentation, talk, video, slides';
 $tlPresentations['presentations_title'] = 'Presentations about museum-digital';
 $tlPresentations['presentations_introduction'] = 'Over the years, a lot of presentations have been held about different aspects of museum-digital - be it the software, be it the community, or how both interact. Here you can find a selection of these talks. If available, video recordings and slides are linked.';
+$tlPresentations['date'] = 'Date';
+$tlPresentations['open'] = 'Open';