Thomas Jefferson had been interested in exploring the west well before the 1803 Louisiana Purchase for France. During the 1780's and 1790's, he championed a few failed attempts at such an exploration. Believing the United States needed to expand west to help ensure its survival and prosperity, he jumped at the chance to buy Louisiana from France's Napoleon Bonaparte.
Answer:
a thesis
Explanation:
This is a great starting sentence structure as it helps form the paragraph.
A query join used within a single table is Inner join
