History of the Flea market

The Flea market was named after the tiny bloodsucking Fleas.

Usually used for second-hand items, the difference between Flea marketing and street vending is that Flea markets often have more than one stall.

Although the meaning has existed for millennia, according to a theory, it is said that a "Fly Market", in 18th century New York City, located in Maiden Lane. 
Going along with "Marché aux puces", which means Market with fleas. As it is speculated that the reason why it was named is that Fleas liked to hide and infest old furniture being sold at the "Flea" markets.

The Chatuchak Weekend Market is world-famous and has a reputation for being one of the largest markets (in general) in Asia that sells almost any commodity.