They did not "create frogs" frogs had probably been part of their ecosystem. When the plagues happened it is believed that God had sent the frogs so the Israelite people would be delivered from Egypt.
Another Answer: According to Christians, The Bible is absolutely true and without error. The Egyptians must have been able through magic to make frogs just like Moses or the Bible is not true and without error. The Egyptians also, supposedly, made the waters turn red with blood and unfit to drink. They did all this by magic--just read the Bible and you will believe ...
Ancient Egyptians were first to create beer.
There were a total of 10 plaques in Egypt , sent by God.
They used papyrus.
to communicate with each other
Egyptian hieroglyphs and Hieratic
A Hebrew calendar website can help you with that.
Jerusalem
yes they did and they created many more.
no , the Chinese did
Papyrus.
According to Egyptian traditions, hieroglyphics was brought to Egypt & taught to them by the god Thoth in "primordial time." Recent discoveries show that picture symbols to represent things/goods for accounting purposes were being used there possibly before 7,000 years ago.It was believed that the Ancient Egyptians first began developing this system of hieroglyphics in about 3000BC
The answer you are looking for is probably "The flooding of the Nile".