<span> Periodization can help historians know when an event occured. This can also help historians learn the cause and effect of another time in history.</span>
Our ancestor, modern man Homo sapiens emerged around 200,000 years ago.
Homo habilis, an early human who evolved around 2.3 million years ago, was probably the first to make stone tools.
Neanderthals died out around 30,000 years ago.
Flint was commonly used for making stone tools but other stones such as chert and obsidian were also used.
The Stone Age is divided into three periods; the Palaeolithic (old Stone Age), Mesolithic (middle Stone Age) and the Neolithic (new Stone Age).
Palaeolithic and Mesolithic people were nomadic hunter gatherers.
They moved frequently following the animals that they hunted and gathering fruits and berries when they could.
The dog was the first animal to be domesticated.
This happened during the Mesolithic period.
Dogs could help with the hunt, warn of danger and provide warmth and comfort.
The gradual development of agriculture and the domestication of animals during the Neolithic period meant that people could live in settled communities.
Some isolated tribespeople were still effectively living in the Stone Age as recently as the twentieth century.
The houses in Skara Brae, a Neolithic Orkney village, had beds, cupboards, dressers, shelves and chairs.
Here's ten hope it helps
<span>Many felt that military service signaled African Americans’ freedom from slavery and citizenship status.</span>
I assume your talking about fractions so
Find a common factor of the numerator and denominator.
Divide both the numerator and denominator by the common factor.
Repeat this process until there are no more common factors.
The fraction is simplified when no more common factors exist.
