History as defined by Ambrose Bierce

HISTORY, n. An account mostly false, of events mostly unimportant, which are brought about by rulers mostly knaves, and soldiers mostly fools.

Of Roman history, great Niebuhr's shown
'Tis nine-tenths lying. Faith, I wish 'twere known,
Ere we accept great Niebuhr as a guide,
Wherein he blundered and how much he lied.

Salder Bupp

From The Devil's Dictionary by Ambrose Bierce.