Big Bang

Expansion

4000 BCE

Our universe was born about 13.7 billion years ago in a massive expansion that blew space up. Scientists believe that expansion happened 13.7 billion years ago because they can not find any evidence of anything older than that.

Autotrophs

3999 BCE

The first autotrophic organism developed about 2 billion years ago. Autotrophs are plants that developed before mammals and, being plants and all.

Neanderthals

3998 BCE

The best-known Neanderthals lived between about 130,000 and 40,000 years ago, after which all physical evidence of them vanishes. Neanderthals are an extinct species or subspecies of archaic humans who lived in Eurasia.

Bipeds

3997 BCE

290-million-year-old fossil from central Germany reveals that in fact bipedalism first evolved at least 60 million years before the rise of the dinosaurs. Bipeds walk with two legs.

Dinosaurs

3996 BCE

Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.

Pangae

3995 BCE

Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago

Australopithecus

3994 BCE

The various species of Australopithecus lived 4.4 million to 1.4 million years ago (mya), during the Pliocene and Pleistocene epochs (which lasted from 5.3 million to 11,700 years ago). The genus name, meaning “southern ape,” refers to the first fossils found, which were discovered in South Africa

Pyramid

3000 BCE

Archaeologists believe Egypt’s large pyramids are the work of the Old Kingdom society that rose to prominence in the Nile Valley after 3000 B.C. Historical analysis tells us that the Egyptians built the Giza Pyramids in a span of 85 years between 2589 and 2504 BC.

Astronomy

400 BCE

The Ancient Greeks developed astronomy, which they treated as a branch of mathematics, to a highly sophisticated level. The first geometrical, three-dimensional models to explain the apparent motion of the planets were developed in the 4th century BC by Eudoxus of Cnidus and Callippus of Cyzicus.

Descartes

1596

René Descartes was a French-born philosopher, mathematician, and scientist.

Einstein

1879

Albert Einstein was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics