My core professor, trying to describe how Wikipedia is an unreliable source tells us, "One time, I went into the Julius Caesar article and changed all the dates so they were wrong. It took them a few months before they fixed it."
Me: Wait, when was this? Do you do this frequently?
Core prof: This was, oh, probably about four or five years ago.
Kid in my class: Wait, I failed a paper freshman year that was about Julius Caesar because all my dates were wrong!
Just thought I'd share that :)