diff --git a/openedx_events/learning/signals.py b/openedx_events/learning/signals.py
index 54b5d553..5cae6d70 100644
--- a/openedx_events/learning/signals.py
+++ b/openedx_events/learning/signals.py
@@ -15,7 +15,6 @@
 # .. event_name: STUDENT_REGISTRATION_COMPLETED
 # .. event_description: emitted when the user registration process in the LMS is completed.
 # .. event_data: UserData
-# .. event_creation_date: 2020-22-07
 STUDENT_REGISTRATION_COMPLETED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.student.registration.completed.v1",
     data={
@@ -28,7 +27,6 @@
 # .. event_name: SESSION_LOGIN_COMPLETED
 # .. event_description: emitted when the user's login process in the LMS is completed.
 # .. event_data: UserData
-# .. event_creation_date: 2020-22-07
 SESSION_LOGIN_COMPLETED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.auth.session.login.completed.v1",
     data={
@@ -41,7 +39,6 @@
 # .. event_name: COURSE_ENROLLMENT_CREATED
 # .. event_description: emitted when the user's enrollment process is completed.
 # .. event_data: CourseEnrollmentData
-# .. event_creation_date: 2020-22-07
 COURSE_ENROLLMENT_CREATED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.course.enrollment.created.v1",
     data={
@@ -54,7 +51,6 @@
 # .. event_name: COURSE_ENROLLMENT_CHANGED
 # .. event_description: emitted when the user's enrollment update process is completed.
 # .. event_data: CourseEnrollmentData
-# .. event_creation_date: 2020-22-07
 COURSE_ENROLLMENT_CHANGED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.course.enrollment.changed.v1",
     data={
@@ -67,7 +63,6 @@
 # .. event_name: COURSE_ENROLLMENT_CHANGED
 # .. event_description: emitted when the user's unenrollment process is completed.
 # .. event_data: CourseEnrollmentData
-# .. event_creation_date: 2020-22-07
 COURSE_UNENROLLMENT_COMPLETED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.course.unenrollment.completed.v1",
     data={
@@ -80,7 +75,6 @@
 # .. event_name: CERTIFICATE_CREATED
 # .. event_description: emitted when the user's certificate creation process is completed.
 # .. event_data: CertificateData
-# .. event_creation_date: 2020-22-07
 CERTIFICATE_CREATED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.certificate.created.v1",
     data={
@@ -93,7 +87,6 @@
 # .. event_name: CERTIFICATE_CREATED
 # .. event_description: emitted when the user's certificate creation process is completed.
 # .. event_data: CertificateData
-# .. event_creation_date: 2020-22-07
 CERTIFICATE_CHANGED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.certificate.changed.v1",
     data={
@@ -106,7 +99,6 @@
 # .. event_name: CERTIFICATE_REVOKED
 # .. event_description: emitted when the user's certificate annulation process is completed.
 # .. event_data: CertificateData
-# .. event_creation_date: 2020-22-07
 CERTIFICATE_REVOKED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.certificate.revoked.v1",
     data={
@@ -119,7 +111,6 @@
 # .. event_name: COHORT_MEMBERSHIP_CHANGED
 # .. event_description: emitted when the user's cohort update is completed.
 # .. event_data: CohortData
-# .. event_creation_date: 2020-22-07
 COHORT_MEMBERSHIP_CHANGED = OpenEdxPublicSignal(
     event_type="org.openedx.learning.cohort_membership.changed.v1",
     data={