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They really did not predict - they just realised that it happened at the same period each year.
The Egyptians new because every year birds called the Ibises would fly by shortly before the nile was going to flood. Also Egyptian priests' would study the sky has part of their religion. They noticed that a star now called Sirius would show before the Nile would flood. Based on that they created one of the world's first calenders. It had 365 days just like ours.
The spring rains and melting snow provided the ancient Egyptians with much-needed water for irrigation and agriculture. The Nile River would flood during this time, depositing fertile soil onto the surrounding farmland, allowing for bountiful crops to be grown. This seasonal flooding was crucial for the prosperity of the civilization.
The flood waters left slit on the farmland, which provided nutrients for the soil
they played with each other
They really did not predict - they just realised that it happened at the same period each year.
The Nile was their life source! It would flood at the same time each year and when the water cleared away it would leave silt over the ground and help their crops grow!
The year was decided by the egyptians. It was designed 365 days each, since every 365 days, the flood of the Neil* would occur, thus the year was of 365 days.
The flood waters left slit on the farmland, which provided nutrients for the soil
they Egyptians made a calendar by looking at the stars and each year they found out it flooded at the same time period all the time
There would be no land animals or people, since all would have perished in the Flood.
The Egyptians new because every year birds called the Ibises would fly by shortly before the nile was going to flood. Also Egyptian priests' would study the sky has part of their religion. They noticed that a star now called Sirius would show before the Nile would flood. Based on that they created one of the world's first calenders. It had 365 days just like ours.
The flood waters left slit on the farmland, which provided nutrients for the soil
The ancient Egyptians were the first peoples known to have used mathematics, to calculate calendars, tides, and surveying. Each year, the Nile river would flood the land and deposit nutrients washed down from the African mountains. The flood waters would wash away the field markers, and they needed ways to figure out what land belonged to whom. The Greeks expanded on the Egyptians' discoveries, and formalized much of what we think of as the language of math.
Some egyptians traded with each other.
The spring rains and melting snow provided the ancient Egyptians with much-needed water for irrigation and agriculture. The Nile River would flood during this time, depositing fertile soil onto the surrounding farmland, allowing for bountiful crops to be grown. This seasonal flooding was crucial for the prosperity of the civilization.
They are opposites to each other. A drought is no water, but a flood is too much.