The expedition under stephen h. long mistook the river for the red river and abandoned their mission in 1820.
a. arkansas
b. missouri
c. canadian
d. mississippi

The correct answer is A) Arkansas.

The expedition under Stephen H. Long mistook the Arkansas River for the Red River and abandoned its mission in 1820.

Throughout the history of the United States, many expeditions were organized in order to explore new lands and the recognition of others. Major Stephen H. Long led one of these expeditions in 1819-20. He was a Topographical Engineer. He led the people that embarked on the ship Western Engineer in the Port of Pittsburg, Pennsylvania. It was on July 24, 1820, that they crossed the Arkansas River down south, and on the 28th, he realized he mistook the Arkansas River for the Red River and abandoned its mission.

the assassination of president lincoln was just one part of a larger plot to decapitate the federal government of the u.s. after the civil war. the first reaction to lincoln’s death was disbelief. then it quickly changed to grief. abraham lincoln’s death created an outpouring of grief from citizens in both the north and the south.

explanation:

lincoln was the first u.s. president to be assassinated. president abraham lincoln, america’s civil war leader, was assassinated just five days after confederate general robert e. lee surrendered his army at appomattox court house, ending the four-year war between the states. on the evening of april 14, 1865, lincoln was attending a performance of our american cousin at ford’s theatre in washington, d.c. john wilkes booth – a 26-year old actor, confederate sympathizer, and white supremacist – slipped into the presidential box and shot lincoln in the head. john wilkes booth and his conspirators had initially planned to kidnap lincoln to save the confederate states. but as the confederacy faltered, booth’s thoughts turned to murder. booth may have decided to act on his hatred after lincoln endorsed giving the right to vote to african-american men who had served in the union army.