Question

18. During what time period did many western states enter

the Union? How many western states entered the Union
during this time?

Answer 1

Many western states entered the Union during the 19th century, a time known as the Westward Expansion. A total of 25 western states were admitted into the Union, including California, Nevada, and Arizona.

Step-by-step explanation:

Many western states entered the Union during the 19th century. This time period is commonly referred to as the 'Westward Expansion' in American history. From 1803 to 1912, a total of 25 western states were admitted into the Union. Some notable examples include California in 1850, Nevada in 1864, and Arizona in 1912.

Learn more about Westward Expansion in the United States