Mae's Iowa Rreport By hiddenvalley5 May 14, 1673 Iowa first setteled Dec 28, 1846 Iowa became the 29th State in Union Oct 28, 1854 The first Iowa State Fair was held Jul 16, 1860 Iowa's population grew by 519107 as the agracultural success grew. Jun 15, 1950 Iowa became the heart of the Corn Belt (a part of the Luisiana Purchase that grew lots of corn). Jun 16, 1950 Iowa became the heart of the Corn Belt. (a part of the Luisiana purchase that grew lots of corn.) May 17, 2013 Iowa today