Ties worn in warm weather for reasons no WASP can remember

Here's a brief history of the necktie that indicates the WASPs stole it from the French who stole it from the Croats. LINGUISTIC NOTE: original word was the Croatian croatta changed to the French cravatte (I'd hate to think it was the Slavic race that gave the world the...yeech...necktie! [how'd that happen, shona? ])
But it also seems the progenitor of the necktie dates all the way back to ancient Egypt...so us Slavs are exonerated . Here's the link (still searching for the reason ties were first donned in the first place...it's been said that the wide ruffled collars of Sir Walter Raleigh's day were designed to prevent head lice from falling under the body garments, but since we're seeing tie-like neck adornments all the way back to antiquity, this may not be the initial reason, but could be):

http://www.shop-usa.info/Half_Windsor/TIE_HISTORY/tie_history.html