The evolution of Homo sapiens, or human beings, is a complex process that took millions of years. Here is a simplified step-by-step explanation:

1. **Sahelanthropus tchadensis**: This is the earliest known hominid, living around 7 million years ago. Fossils were found in Chad.

2. **Australopithecus afarensis**: Known as "Lucy", lived around 3.9 to 2.9 million years ago in Eastern Africa. They were bipedal but also adept climbers.

3. **Homo habilis**: Lived around 2.1 to 1.5 million years ago. They are known as "handy man" because they made tools from stones.

4. **Homo erectus**: Lived around 1.9 million to 110,000 years ago. They were the first hominids to leave Africa and spread across parts of Asia and Europe.

5. **Homo neanderthalensis**: Known as Neanderthals, lived around 400,000 to 40,000 years ago in Europe and Western Asia. They were skilled hunters and tool makers.

6. **Homo sapiens**: This is us, modern humans. We first appeared around 300,000 years ago in Africa. We have larger brains and are capable of abstract thinking, language, introspection, problem solving and culture through social learning.

This is a simplified version of human evolution. There are other species and subspecies of hominids that also played a role in our evolution.

Question

The evolution of Homo sapiens, or human beings, is a complex process that took millions of years. Here is a simplified step-by-step explanation:

1. **Sahelanthropus tchadensis**: This is the earliest known hominid, living around 7 million years ago. Fossils were found in Chad.

2. **Australopithecus afarensis**: Known as "Lucy", lived around 3.9 to 2.9 million years ago in Eastern Africa. They were bipedal but also adept climbers.

3. **Homo habilis**: Lived around 2.1 to 1.5 million years ago. They are known as "handy man" because they made tools from stones.

4. **Homo erectus**: Lived around 1.9 million to 110,000 years ago. They were the first hominids to leave Africa and spread across parts of Asia and Europe.

5. **Homo neanderthalensis**: Known as Neanderthals, lived around 400,000 to 40,000 years ago in Europe and Western Asia. They were skilled hunters and tool makers.

6. **Homo sapiens**: This is us, modern humans. We first appeared around 300,000 years ago in Africa. We have larger brains and are capable of abstract thinking, language, introspection, problem solving and culture through social learning.

This is a simplified version of human evolution. There are other species and subspecies of hominids that also played a role in our evolution.

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