Zagazig has large cotton factories and used to have offices of numerous European merchants. It is located on the Muweis Canal and is the chief hub of the corn and cotton trade. There is a museum of antiquities, the Sharkeya National Museum (sometimes called the Amed Orabi Museum, at Herriat Raznah) that contains many important archaeological exhibits (currently closed for restoration). Zagazig University, one of the largest universities in Egypt, is also located in the city, with colleges in different fields of science and arts. The Archaeological Museum of the University of Zagazig exhibits significant finds from the nearby sites, Bubastis
North African climate cycles North African climate cycles North African climate cycles have a unique history that can be traced back millions of years. The cyclic climate pattern of the Sahara is characterized by significant shifts in the strength of the North African Monsoon. When the North African Monsoon is at its strongest, annual precipitation and consequently vegetation in the Sahara region increase, resulting in conditions commonly referred to as the "green Sahara". For a relatively weak North African Monsoon, the opposite is true, with decreased annual precipitation and less vegetation resulting in a phase of the Sahara climate cycle known as the "desert