An abortion that occurs spontaneously is also known as a miscarriage. An abortion may be caused purposely and is then called an induced abortion, or less frequently, "induced miscarriage". The word abortion is often used to mean only induced abortions. I hope this helps. :)
Benjamin Zander's main goal in this video, The Transformative Power of Classical Music, is to show how much impact a piece of music can have on the mind. He makes the point that music is just frequency.
Roger Sherman was significant in the Constitutional Convention because he was an American politician whose plan for representation of large and small states prevented a deadlock at the U.S. Constitutional Convention of 1787.
Also, Sherman served as a delegate to the 1787 Philadelphia Convention, which created the United States Constitution. He ultimately supported the establishment of a new constitution, and proposed the Connecticut Compromise, which won the approval of both the larger states and the smaller states.
The agricultural revolution led to the need for organized "government" since this revolution meant that people were free to perform other duties and tasks, which often led to disputes.