What's the name for this

I'm searching for a web service that allows to enter a date and will then return all relevant historical things that happened at that date, in detail if possible.

I don't know how this is called so it's hard to find something with a search engine, any ideas?

EDIT uh probably "daily almanac"?

try searching for "on this day" (including quotes).

http://news.bbc.co.uk/onthisday/default.stm

I wrote a program that did that years ago called "birthdate history"

Thanks. This one is pretty good too:
http://www.scopesys.com/anyday/

That rings a vague and distant bell!