Was today the anniversary of the first email?
NO
No — Ray Tomlinson sent the first networked email in late 1971, probably around 2 October (some say late October), so nobody agrees what today is.
Why
- Tomlinson's @-message to himself went out in October 1971
- He recalled the text as "something like QWERTYUIOP"
- Some sources mark 2 October 1971; he himself wasn't sure