My first "contributions" were 2004, I was 10 years old and supposed to write a text about Mozart. Somehow I noticed the edit button and started vandalizing the page, as I didn't understood what Wikipedia was meant to be. Some patient wikipedian kept reverting and reporting my IP addresses during that day. It's both incredible to see how old and young Wikipedia is, if we'd say there was a "World Wide Web Heritage" project, Wikipedia and the contributors are truly the first thing that comes to mind.

Wonderful website!