Why are the Chaldeans important?

Answer 1

It was a small Semitic nation that emerged between the late 10th and early 9th century BC, surviving until the mid 6th century BC, after which it disappeared as the Chaldean tribes were absorbed into the native population of Babylonia. It was located in the marshy land of the far southeastern corner of Mesopotamia, and briefly came to rule Babylon. During a period of weakness in the East Semitic speaking empire of Babylonia, new tribes of West Semitic-speaking migrants[3]arrived in the region from the Levant between the 11th and 10th centuries BC. The earliest waves consisted of Suteans and Arameans, followed a century or so later by the Kaldu, a group who became known later as the Chaldeans or the Chaldees.