Title: Crusades | Definition, History, Map, Significance, & Legacy | Britannica
Headings: 
Crusades
Christianity
How many Crusades were there, and when did they take place?
What was the purpose of the Crusades?
Who were the leaders of the Crusades?
Were the Crusades successful?
Were there lasting results from the Crusades?

Content: None of the following Crusades were successful. The capture of Acre in 1291 by the Māmluk sultan al-Ashraf Khalil marked the end of Crusader rule in the Middle East. Read more below: The results of the Crusades
Were there lasting results from the Crusades? The Crusades slowed the advance of Islamic power and may have prevented western Europe from falling under Muslim suzerainty. The Crusader states extended trade with the Muslim world, bringing new tastes and foods to Europe. The Crusades had a marked impact on the development of Western historical literature, bringing a plethora of chronicles and eyewitness accounts. However, Constantinople never returned to its former glory after being sacked by the Fourth Crusade, and the schism between Eastern and Roman Catholic Christianity was further entrenched. The Islamic world saw the Crusaders as cruel invaders, which helped engender distrust and resentment toward the Christian world. Read more below: