When was 4 000 years ago

The 3rd millennium BC included the following key events: c. Archaeologists confirm Indian civilization is years older than previously believed. Since the early excavations at Harappa and Mohenjodaro, in what is today Pakistan, the Indus Civilization has been considered among the world's most ancient civilizations — along with Egypt and Mesopotamia in what is today Iraq.

Beginnings of urbanisation in Mesopotamia in Sumer and Egypt. First writings in the cities of Uruk and Susa cuneiform writings. The Vedic civilization is the earliest civilization in the history of ancient India. It is named after the Vedas, the early literature of the Hindu people.

The Vedic Civilization flourished along the river Saraswati, in a region that now consists of the modern Indian states of Haryana and Punjab. The 3rd millennium BC spanned the years through BC. Write Your Answer. For example : tonne mass of a blue whale; million tonnes of global human biomass. Power and energy : 1 watt of power uses 1 joule of energy per second; about watts in 1 horsepower; 3, kilojoules kJ or kilocalories kcal in 1 kWh of energy, sustaining 1, watts for 1 hour.

For example , a watt incandescent light bulb illuminates a room; 80 watts sustain human basal metabolic rate, using 6, kJ or 1, kcal or 1. Patrick Doncaster , 7 November , one of the then 7,,, rising by per minute, 79 million per year. Evolution of life on Earth 4,,, earliest life on Earth: single-celled prokaryotic Archaea Hadean Eon , 3. Human evolution 2,, earliest human, Homo sp. Years ago. Evolution of life on Earth. Most of the recognizable pharaohs came from this time, including Ramesses II, Tutankhamen, and Hatshepsut — the first female ruler of Egypt.

Understanding the vulnerability of pyramids, pharaohs in the New Kingdom elected to build their tombs underground and hidden, as to not attract the attention of bandits. One of such locations, the Valley of Kings, is known to contain no fewer than 63 tombs for pharaohs between the Eighteenth and Twentieth Dynasties. The site will be yet another stop on our Nile River cruise, as a trip to Egypt would not be complete without visiting the Valley of Kings. The next millennium was not kind to Egypt, as Persians, Greeks, and Nubians invaded and occupied the Nile for a time.