thursday history: on 15 august 2010, block 74638 briefly created 184 billion bitcoin out of thin air. two outputs of 92.2 billion each overflowed the code that summed them, so the check passed. satoshi shipped a patch in about five hours, and the clean chain overtook the bad one at block 74691. bitcoin has had exactly one inflation bug, and it lasted less than a day because nodes rejected it.