I feel like this is provider agnostic. If you signup to a bunch of different newsletters (or anything else really), at some point your email will get out there.

Proton has email aliasing via SimpleLogin which I have found to be really good.

Not said to me but someone I know, “you’re a lanky string of piss”.

I’m no expert but I assume that the year Christ died would be “year zero” (assuming you’re talking about anno Domini (AD) and before Christ (BC)) since we started counting after that.

EDIT: reading more on the topic I might be completely incorrect with my above statement. If someone else knows, please do correct me

EDIT 2: I found this on Wikipedia which talks about a “year zero”