Arrange the events in chronological order.
The Fourth Crusade attacked and sacked the city of Constantinople.
Western countries launched a series of crusades.
The Ottoman Turks conquered Constantinople.
The Byzantine Emperor sought the crusaders’ help to defeat the Arab Muslims.

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

on august 14, 1935, the social security act established a system of old-age benefits for workers, benefits for victims of industrial accidents, unemployment insurance, aid for dependent mothers and children, the blind, and the physically handicapped.

" the supreme courts rulings should reflect the exact text of the constitution rather than justices own beliefs." is exactly right

after the success of the sputnik launch in 1957, the us feared that they would not be able to send satellites to space.

their earlier attempts of building and sending a spacecraft failed miserably, and the soviets successfully did it. it gave rise to the era of cold war.