diff --git a/extension/toar_controlled_vocabulary-0.1/toar_controlled_vocabulary--0.1.sql b/extension/toar_controlled_vocabulary-0.1/toar_controlled_vocabulary--0.1.sql
index 9f8be9d86a34aea28f5cd748446771a6605aca3f..7c955595996d35a2828c2b3d069b0a9b259128ee 100644
--- a/extension/toar_controlled_vocabulary-0.1/toar_controlled_vocabulary--0.1.sql
+++ b/extension/toar_controlled_vocabulary-0.1/toar_controlled_vocabulary--0.1.sql
@@ -69,6 +69,29 @@ INSERT INTO OK_vocabulary (enum_val, enum_str, enum_display_str) VALUES
     (6, 'Individual', 'individual'),
     (7, 'Other', 'other');
 
+-- Changelogs
+-- ==========
+
+-- Type of Change
+
+CREATE TABLE IF NOT EXISTS CL_vocabulary (
+    enum_val         INT NOT NULL,
+    enum_str         character varying(128) NOT NULL,
+    enum_display_str character varying(128) NOT NULL,
+    PRIMARY KEY(enum_val, enum_str),
+    CONSTRAINT cl_enum_val_unique UNIQUE (enum_val)
+);
+
+INSERT INTO CL_vocabulary (enum_val, enum_str, enum_display_str) VALUES
+    (0, 'Created', 'created'),
+    (1, 'SingleValue', 'single value correction in metadata'),
+    (2, 'Comprehensive', 'comprehensive metadata revision'),
+    (3, 'Typo', 'typographic correction of metadata'),
+    (4, 'UnspecifiedData', 'unspecified data value corrections'),
+    (5, 'Replaced', 'replaced data with a new version'),
+    (6, 'Flagging', 'data value flagging');
+
+
 -- Timeseries
 -- ==========