The United States Congress has designated each March as Irish American Heritage Month in 1995. Prior to the congressional law, since 1991, Presidents have proclaimed March to be Irish American Heritage Month in recognition of the 44 million Americans of Irish decent. March was chosen because so many Americans celebrate their Irish heritage on St. Patrick’s Day. Celebrate Irish American Heritage Month with flags, decorations & gifts from Flagandbanner.com! Whether you're looking for a Shamrock flag, and Erin Go Bragh flag, leprechaun gifts or other fun items, we've got what you're looking for!