I believe below are the statements:
<span>-The new industrial technologies improved means of transportation.
-The industrial developments caused friction between Europe and North America.
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I think it was <span> over who would control appointments of church officials, a conflict which is sometimes called the Investiture Controversy. Hope this was useful :P</span>
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,
