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About 13.7 billion years ago the Big Bang occurred. The Big Bang theory states that a massive expansion occurred that created the universe.
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The first autotroph developed 2 billion years ago. These are
organisms that are able to synthesize their own food using inorganic substances. -
The first dinosaurs appeared 230 million years ago. Dinosaurs are extinct reptiles that were typically very large and either carnivorous or herbivorous.
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Pangea broke apart about 175 million years ago. Pangea a singular landmass consisting of all the modern day continents. Eventually the land broke apart creating the continents we have today.
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The first bipeds appeared about 3.9 million years ago. A biped is an animal that uses two legs for walking.
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They existed in Africa from around 4.2 to 1.9 million years ago. An early form of humans that had a combination of human and apelike features.
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Neanderthals lived 130,000 and 40,000 years ago. These are an extinct species of humans that were nomadic and are distinguishable by their large facial features and small limbs.
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The pyramids were built from about 2550 to 2490 B.C. The Ancient Egyptians constructed the pyramids using limestone. These pyramids were used as burial tombs for high ranking Egyptians.
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The Ancient Greeks began to study astronomy in the 400 BC. This is the branch of science that deals with space and celestial objects.
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This French philosopher and mathematician lived from 1596-1650. He is famous for making important connections between algebra and geometry.
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This German Physicist lived from 1879-1955. He is famous for developing the theory of relativity.
