African Americans were left out of the new prosperity
I think you need to put this into science
Initially the movement operated chiefly at the local level but it later expanded to the state and national levels progressives drew support from the middle class and the supporters included many lawyers teachers physicians and ministers and business people
Machine Guns, The USS Monitor, Fenian Ram, The Maxim Gun, The First Bulletproff Vest Made Of Heavy Metal Plates, Gun Silencer, First Tanks, Nuclear Bombs, The Laser Is Demonstrated For The First Time,