World War II,Korean War, Vietnam War, Persian Gulf War, Afghanistan War Reason for involvement

world war II

Explanation:

1. Paleolithic Era

2. Neolithic Era

3. City States in Mesopotamia

4. Ancient egyptian Empire

5. The City State of Sparta nad Athens.

Explanation: History is divided in Periods: Pre-Historic Ages, Ancient History, Middle Ages and Modern Ages.

Pre-historic Ages dated, approximately, from 2.5 million years ago to 1200 B.C. and is categorized into 3 archaelogical periods: Stone Age, Bronze Age and Iron Age. Stone Age is divided into 3 more periods: Paleolithic, Mesolithic and Neolithic.

Paleolithic, roughly 2.5 million years to 10000 B.C., is the period when humans lived in caverns, were gatherers and hunters, cooking with controlled fire and used basic stone and bone tools. They also left behind art using animal bone and blood, mixture of charcoal, tree saps and carved small figurines from stones, clay and antlers.

Neolithic, rughly 8000 BC to 3000 BC, humans switched from gatherers to farmers, domesticating animals and cultivating grains. They used more polished tools and there was an advance in home construction and art.

Mesopotamia is a region of southwest Asia in the Tigris and Euphrates  and is the beginning of civilization. Although humans settled in the Paleolithic Era, City States of Mesopotamia started to appear around 3200 BC. The first one is Uruk, a mud brick metropolis constructed with the riches from trade and conquest. At its peak, it had a population of 50,000 citizens.

Ancient Egyptian Empire was a civilization formed at the ancient North Africa, near the Nile river. It ruled for almost 30 centuries, from around 3100 BC to 332 BC. They were a preeminent civilization in the Mediterranean World. For its piramids and vast and rich culture, the Egyptian Empire made archaeologists and historians create a field of study all its own: Egyptology.

The City State of Sparta and Athens are two cities in the Greek Empire. Due to its terrain and proximity to the ocean, the Greek Empire created polis (city-state), which started about 750 BCE. Each polis were independently and often very different from one another. An example were Athens and Sparta:

While in the first, its population were dedicated to arts, architecture, literature, philosophy, science and history, Sparta were a militaristic population ruled by an oligarchy and two kings  or a small group that practised political control.