President Chester A. Arthur signed the Chinese exclusion act in 1882 which banned Chinese immigration to the United States for a total of 40 years.
Answer:
The society of Ancient Sparta was divided into three main classes. At the top of society were Spartiate. Following the Spartiate were the perioeci and at the bottom, were the helots. The Spartiate were like the native Spartans in Sparta.
One reason for the increased twinning rates begin to be the increase in assistive reproductive technologies. Including fertility boosting medications, artificial insemination, vitro fertilization (IVF) is the most popular.