Why was the invasion of the byzantine empire by the seljuk turks in the 1050s significant

One of the primary reasons why the attack of the Byzantine Empire by the Turks was significant that when the Turks initially attacked the Byzantine Realm, the Holy Lands which were also in the empire were overrun. This lead to Alexius I asking the Pope for Christian knights to help him in the Crusades which then lead to Pope Urban II to allow the Crusades to happen.

the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

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its c not d   tell me if that´s correct