The reasons they wanted to take over Jerusalem and to protect Byzantine from the Turk's and because Christ commands it .Also because the Turks were taking over many christian territory.
Wait what are buses
the wheel's on the bus go round and round round and round
"On this account I, rather the lord,beseech you as Christ's heralds to publish this everywhere and to persuade all people of whatever rank, foot soldiers and knights, poor and rich to carry aid promptly to those Christians and to destroy the enemy from the lands of our friends."
Silk! Cloth! Spices!
The 1st crusade was successful and they kept Jerusalem for 30 years until Turks attacked.
And that's how you do that
The kids thought that since the parents couldn't win that they could but it sadly failed and no kid returned
The trade Between Europe and the east increased
They learned many different things from the Europeans