Membership Information

[hyesunjin]

I'd like to know the date when I first signed up and used it, where can I check it?

[Caity]

You can find that here: https://trello.com/when-did-i-sign-up

[hyesunjin]

Thank you for your answer.
In addition, is there a way to know the date when the project card was first created?

[Caity]

If you know what board it was on, you can look at the board's activity feed and scroll back to the very beginning. If you know which card was first, you can open the card and check its activity feed instead.