The one great event of the year was the Nile flood, and this took place (on the average) every 365 days.

As time went on the Nile flood occurred later and later in the year, until finally it had made a complete circuit of the year.

Built in a.d. 715 to help measure the peak and trough of the Nile flood.

Founded to the east of the river, it was protected from the yearly Nile flood and surrounded by a high wall to guard against invaders.

I wonder who will ride at his side before the next Nile flood.

Long-term variations in Nile floods are beyond the perceptions of people.

The long wars combined with a murrain of cattle in 1842 and a destructive Nile flood.

He also saw a device that was used for measuring the height of the Nile flood.

The city was submerged under water in the 8th century as a result of earthquakes or a Nile flood.

Once the motive was to help ancient Egyptian farmers predict the annual Nile flood.