Answer:
Paper
Step-by-step explanation:
The egyptians were the first people to use a form of paper. it was called "papyrus" and was made out of palm tree leaves. Another contribution would be their mummies. using the preseved animals and people, we can learn what deseases were around and how our human biology changed from their time to now. they also created one of the first calender systems. it was based on the flooding of the nile river. there are many other contributions but these are some of the biggest.
hope this helps