The Olmec, Mayan, Incan, and Aztec civilizations are some of the greatest ancient civilizations in history, and yet we know very little about them compared to other parts of the world. The Olmecs are frequently forgotten entirely, and the rest are often lumped together or confused, but they were all completely distinct. In short, the Maya came first, and settled in modern-day Mexico. Next came the Olmecs, who also settled Mexico. They didn’t build any major cities, but they were widespread and prosperous. They were followed by the Inca in modern-day Peru, and finally the Aztecs, also in modern-day Mexico.
Hopefully this answers your question if it doesn’t and I just overlooked it lmk.
Harappa and Mohenjo-Daro are the two cities of the Indus River Valley civilization.
Hope it helps!
Mendeleev arranged the elements according to increasing atomic mass. The modern periodic law says that the properties of the elements repeat periodically when the elements are arranged according to a certain trend. ... An incomplete set of atomic mass, density, and melting point data is given for three elements in a triad.
