55. Which of the following events would come first on a time line?

Answer: B

Explanation:

The United States purchased the Louisiana Territory.

The event that would come first on a timeline is the purchase of the Louisiana Territory by the United States, which occurred in 1803. This significant territorial expansion laid the groundwork for future developments in American history.

A) Gold was discovered at Sutter's Mill in California.

This event took place in 1848, well after the United States purchased the Louisiana Territory in 1803. Therefore, it cannot be the first event on the timeline.

B) The United States purchased the Louisiana Territory.

This event occurred in 1803 and is the earliest among the options presented. It marked a crucial moment in American history, significantly expanding the nation's territory.

C) Abraham Lincoln was elected president.

Abraham Lincoln was elected president in 1860, which is significantly later than the Louisiana Purchase. Thus, this event cannot be the first on the timeline.

D) Texas received its independence from Mexico.

Texas gained its independence in 1836, which also takes place after the Louisiana Purchase. Therefore, this event does not come first on the timeline.

Conclusion

The Louisiana Purchase in 1803 is the earliest event listed, making it the correct answer. All other options occurred later in the timeline, confirming that the purchase was a foundational moment in the expansion of the United States.