The Sumerians invented writing, the potter's wheel, wheeled carts, the ox-drawn plow, and the calendar. The Greeks gave us philosophy, democracy, and made huge advances in astronomy, mathematics, physics, and biology. The Romans discovered concrete and built great roads, arches, sewers, and aqueducts. The Chinese invented paper, gunpowder, and the magnetic compass. The Egyptians built awe-inspiring pyramids but invented little of consequence other than papyrus sheets. It seems, therefore, that Egypt was the least innovative among the major ancient civilizations.
This is an extremely flawed viewpoint. The Egyptians reigned in the Nile Valley for over 3000 years and in that time invented more than just papyrus and the pyramids. The plow, the calendar, toothpaste, and the door lock to name a few.
Perhaps the most significant contribution to the world stage was the invention of the earliest written language in the West still attributable to languages used today. You're typing these letters because Egyptians created a language 5000 years ago which in turn informed the creation of alphabets right down to this one.
Even the most cursory of Google searches will reveal countless pages describing the list of Egyptian accomplishments and inventions. In the future, please try to do even a modicum of research before asking an obviously contentious and incorrect question.