Abu-Bakr spread Islam by defeating the people that went against him and converted them to Islam. If they did not convert he would murder them.
The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population.
Answer;
US manufacturing had surpassed the level of industrialized Britain, and the United States had become the world's largest producer.
Explanation;
Industrialization began in the United States when Samuel Slater emigrated from Britain to Rhode Island in 1789 and set up the first textile factory on U.S soil.
-The American Civil War (1861–65) was the first truly industrial war; the increasingly urbanized and factory-based North fighting against the agriculture-focused South, and industrialization grew explosively afterward. By 1900 the United States had overtaken Britain in manufacturing, producing 24 percent of the world’s output.
