Rewind Wednesday triggers a notification when you have something to look back and reflect on from snippets you've created in the past.
You can enable this notification to show up every Wednesday or daily to see your throwback content.
How to enable Rewind Wednesday notifications:
Tap on the bell icon to the right of your profile picture > enable "Rewinds and Themes" > then tap on "Notification Preferences"
Select "Rewind Wednesday" if you want to receive a notification once a week or "Every day I have a Rewind available!" if you wish to receive a daily notification when content is available.