around 5,000 b.c
hi
god knows
The Harrpan civilization collapsed about 1500 B.C. Historians think that several earthquakes and floods damaged the cities. Then the Indus River changed its course, killing many people and forcing others to flee the area.
The Indus River Valley period, characterized by the flourishing of the Harappan civilization, is generally considered to have ended around 1900 BCE. The decline is attributed to a combination of factors, including climate change leading to drought, shifts in river patterns, and possibly social upheaval or invasions. These changes resulted in the gradual abandonment of urban centers and a decline in trade and agricultural productivity. Ultimately, the civilization fragmented into smaller, less organized communities.
The decline of the Harappan civilization, also known as the Indus Valley Civilization, is attributed to a combination of factors rather than a single leader or event. Major contributing factors include climate change leading to decreased rainfall and agricultural productivity, along with possible tectonic activity that may have altered river courses. Additionally, socio-economic issues, such as trade disruptions and resource depletion, could have weakened the civilization. These factors collectively led to the gradual decline and eventual abandonment of major urban centers around 1900 BCE.
The Sumerians overtook the settlers in the Tigris/Euphrates river valley in 3500 B.C.E. and they were taken over by the Assyrians in 900 B.C.E
when did Sumerian civilization end
You can get your period at ANY time of the month.
the classical time period
It is widely believed that civilizations started at the end of the Neolithic period. Three basic institutions that are required for a civilization is a system of writing, a city, and a ceremonial center.
cuz
the Apocalypse