ok, from a little reasearch, it seems canadian thanksgiving is based on a few different events that are truely seperate, but in practice, interestingly similar to ours in the u.s..
initially, it was modeled after a feast that was given by martin frobisher, an english explorer who gave thanks to god for having survived a long journey trying to find a northern passage to the orient, eventually creating a successful settlement in newfoundland.
next, the french explorers who made it to canada also had a feast of thanks for having survived the trip, and they shared their bounty with the native tribes they associated with.
when the seven years war ended, the residents of halifax had a feast of thanksgiving, presumably to celebrate a peaceful future.
during the american revolution, the cowards
still loyal to england who tucked tail and ran to canada brought the u.s. tradition of a feast of thanksgiving along with them. i guess they were thankful for not getting their butts whooped, lol.
finally, somewhere between 1879 and 1931, all of these traditions were combined into one feast of thanksgiving for having a bountiful harvest, and creating the great sport known as hockey.
ok, i added that last bit.