Answer:
Ivory, spices, slaves, wine, weapons and many other materials were traded, and expanded the economic system of the Mediterranean Sea.
It was the "Printing Press" that was developed by Johannes Gutenberg in 1454 and enabled ideas to spread quickly, since before this, almost all books had to be transcribed by hand, which made them relatively rare and expensive.
A boy named Bernard said, "you know, that's bad luck. If you do it too much, then your tongue might get stuck."
