Why are the Agriculture Revolution the Columbian Exchange and the Industrial Revolution three of the most important historical developments?

Answer 1

I am not going to go into the history of each of those topics, but take into consideration the Columbian Exchange as the very beginning of the other two events, it is when America was first beginning to become the new world, and as time went on, and the Native Americans were made scarce by disease and murder, Europeans, eventually Americans, began industrializing the new world. The actual Industrial Revolution began in 1750 and the industrial age lasted until around 1914, and it was started by the second agricultural revolution occurred in the early 1700s when western Europeans began developing dikes, and combing smaller plots into larger ones to make for more efficient land use, using fertilizer, the seed drill (invented by Jethro Tull), the understanding that certain crops (turnips for example) restored exhausted soil, etc. These discoveries allowed for Americans in the new world to begin use of the land to grow new world crops, corn, potatoes, sugar cane, etc. This second agricultural revolution would lead to the industrial revolution because it allowed for mass population growth, and allowed for death by starvation to almost subside, along with increased hygiene, not only were people not starving, but they were eating healthier, medical care was improving. Next would come the development of new technologies, harnessing coal to create the steam engine, the quality of iron improved due to coal as well.

I hope this answers some of your questions, again I am not going into great detail, but this should give you somewhere to start.