Bloomingdales is an American department store chain.It was founded by Joseph B. and Lyman G. Bloomingdale in 1861. It became a division of the Cincinnati based Federated Department Stores in 1994 through which it is affiliated with the Macys department store chain the holding company was renamed Macys in 2007Bloomingdales is an American department store chain.It was founded by Joseph B. and Lyman G. Bloomingdale in 1861. It became a division of the Cincinnati based Federated Department Stores in 1994 through which it is affiliated with the Macys department store chain the holding company was renamed Macys in 2007