Most people find farts pretty funny no matter what background they come from. Did ancient peoples also find farts hilarious? Is there some Sumerian tablet that mentions farts being funny? I find it interesting how ingrained in the human psyche this seems to be.
Believe it or not, the oldest recorded joke might indeed be a fart joke dicovered on a sumerian tablet. Discussion here: http://www.reddit.com/r/AskHistorians/comments/uh9pn/why_did_the_sumerians_find_this_fart_joke_funny/