diff --git a/src/NodaTimeAutotranslater.php b/src/NodaTimeAutotranslater.php
index e65993f..3f7a9b3 100644
--- a/src/NodaTimeAutotranslater.php
+++ b/src/NodaTimeAutotranslater.php
@@ -338,7 +338,7 @@ final class NodaTimeAutotranslater {
             return self::TRANSLATABLE_CENTURY;
         }
 
-        if ((intval($zeit_ende) + 1) % 10 === 0 and intval($zeit_beginn) % 10 === 0) {
+        if ((intval($zeit_ende) + 1) % 10 === 0 and intval($zeit_beginn) % 10 === 0 and intval($zeit_beginn) > 1000) {
             return self::TRANSLATABLE_DECADE;
         }
 
diff --git a/tests/NodaTimeAutotranslaterTest.php b/tests/NodaTimeAutotranslaterTest.php
index 11e02ce..cdd1247 100644
--- a/tests/NodaTimeAutotranslaterTest.php
+++ b/tests/NodaTimeAutotranslaterTest.php
@@ -101,6 +101,28 @@ final class NodaTimeAutotranslaterTest extends TestCase {
 
     }
 
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testCanTranslateDecade():void {
+
+        $timeInfo = [
+            "zeit_beginn" => "1920",
+            "zeit_ende"   => "1929",
+            "zeit_zaehlzeit_jahr"  => "1925",
+            "zeit_zaehlzeit_monat" => "00",
+            "zeit_zaehlzeit_tag"   => "00",
+        ];
+        $output = NodaTimeAutotranslater::getTranslations($timeInfo);
+        self::assertEquals($output["de"], "1920er Jahre");
+
+    }
+
     /**
      * Test to check whether the HTML page is correctly generated.
      *
@@ -123,6 +145,28 @@ final class NodaTimeAutotranslaterTest extends TestCase {
 
     }
 
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testTranslateDecadeBeforeCommonEraAsTimespan():void {
+
+        $timeInfo = [
+            "zeit_beginn" => "-10",
+            "zeit_ende"   => "-1",
+            "zeit_zaehlzeit_jahr"  => "0005",
+            "zeit_zaehlzeit_monat" => "00",
+            "zeit_zaehlzeit_tag"   => "00",
+        ];
+        $output = NodaTimeAutotranslater::getTranslations($timeInfo);
+        self::assertEquals($output["de"], "10-1 v. Chr.");
+
+    }
+
     /**
      * Test to check whether the HTML page is correctly generated.
      *