Which of the following ended the period of presidential reconstruction?

the election of ulysses s grant in 1868
the assassination of abraham lincoln in 1865
the withdrawal of federal troops from the south in 1877
the radical republicans success in the elections of 1866

The correct answer is "The radical Republicans success in the elections of 1866".

Explanation:

The period of presidential reconstruction started when President Andrew Johnson created a recovery plan after the death of President Abraham Lincoln in 1865. The presidential reconstruction plan included to forgive former Confederates that would like to pledge loyalty to the Union. However the plan did not last long, since radical Republicans gain majority power in the Congress  in the elections of 1866 after several episodes of violence.

go up to your profile picture in the top right hand. click on it. then click on edit profile. there you shall see delete account

hello,

what started the norman conquest?

profound political, administrative, and social changes in the british isles. last line of my information: )