• Summary
  • Contents
  • Subject index

A manual offering information on the most important laws and treaties approved by Congress in more than 200 years since the first session in 1789. Each Congress is covered in a separate chapter introduced by a historical essay setting the actions of the legislators in the context of their times.

Thirtieth Congress: March 4, 1847, to March 3, 1849
Thirtieth Congress: March 4, 1847, to March 3, 1849
  • First session—December 6, 1847, to August 14, 1848
  • Second session—December 4, 1848, to March 3, 1849
  • (Administration of James K. Polk, 1845–1849)
Historical Background

By the time the Twenty-ninth Congress adjourned on March 3, 1847, American military forces had taken possession of both New Mexico and California. During the next nine months before the Thirtieth Congress convened, U.S. military operations shifted to the Mexican heartland, when an expedition under General Winfield Scott captured the port of Vera Cruz (March 29) and then advanced to the Mexican capital, defeating the Mexicans at Contreras and at Churubusco. After a prolonged and bitter campaign, Scott occupied Mexico City on September 14 and raised the American ...

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