What items did the crusaders bring back from the east

Crusaders returned with apricots, lemons, rice, dyes, spices, perfume, soap, and glass mirrors. They also brought back a musical instrument, the ancestor of the modern guitar.

They bring back foods like rice, coffee, dates, lemons, sugar, and other things. They also bring back households things like carpets, mirrors, writing paper, and wheelbarrows. And they also bring new ideas to the east like algebra, chemistry, and Arabic figures 0 to 9.