Pope Urban the ll calls for a crusader to take back Jurusalem
The first crusade was sucssesful because they killed the other guy.
Pope calls for the second crusade.
the 3rd crusade was attempted by european leaders to get back the holy land.
the fourth crusade was a failure because they were originally intended to conquer muslim controled jerusalem or an invasion through egypt. Instead the crusaders of western europe invaded and sacked the christians.
including different ways to build and sail ships and how to make and use magnetic compasses. Europeans were also introduced to many new trade goods while on crusade, including silk, cotton, different spices, and new forms of art and literature. The impact on Europe was tremendous. It increased the desire for trade with other parts of the world.