How long have you had the same email address? The first one I registered that I’m still using today is a hotmail address, which you can find out the date you registered @ https://account.live.com/summarypage.aspx
Registered since: 29 August 2001
So my email is 5 years old! Will be celebrating its 6th birthdat this year 😀
I have an old Yahoo account as well, but looking in the account pages their, I can’t find a way to see when the account was registered.