Early Human and Prehistoric Cultures

Prehistory refers to the period of human history before the invention of writing systems. Once written records began to be kept, the historical period commenced.

The primary factor in the success and survival of Homo sapiens was their high adaptability to diverse and changing environments. While hunting, tool-making, and eventually farming were important, they are all expressions of this fundamental ability to adapt.

A sedentary lifestyle involves living permanently in one place. The development of agriculture (farming) allowed humans to settle down in permanent communities rather than moving constantly to find food.

Nomadic cultures are characterized by constant movement or migration from place to place in search of food, water, and pasture, rather than living in a single permanent settlement.

The domestication of plants and animals occurred during the Neolithic period, which is also known as the New Stone Age. This transition marked the shift from hunting and gathering to agriculture.

To survive in colder climates during migrations, early humans adapted by creating warm clothing from animal furs and constructing shelters to protect themselves from the elements. While fire was also crucial, making clothes and building shelters were direct adaptations to living in cold regions.

Early humans who relied on hunting wild animals and foraging for wild plants, fruits, and nuts for survival are known as hunter-gatherers. This lifestyle was the dominant way of life before the advent of agriculture.

The primary and earliest uses of fire by early humans were to provide warmth in cold climates, cook food to make it safer and easier to digest, and scare away dangerous predators.

The Neolithic Revolution is defined by the transition of human societies from hunting and gathering to agriculture and settlement. This shift allowed for food surpluses, population growth, and the rise of civilizations.

During the last Ice Age, lower sea levels exposed a land bridge (Beringia) connecting Siberia in Asia to Alaska in North America, allowing early humans to migrate between the continents on foot.

A hominid is a member of the biological family Hominidae, which includes modern humans, extinct human species, and all of our immediate evolutionary ancestors.

Boats are among the earliest human inventions, with evidence of watercraft dating back to the Paleolithic era (at least 8,000 to 10,000 years ago). The wheel (c. 3500 BCE), the alphabet (c. 2000 BCE), and paper (c. 100 CE) were developed much later in human history.

While there are several theories regarding the decline of the Indus Valley Civilization, including climate change, tectonic shifts, and foreign invasions, there is no definitive consensus, meaning the exact cause remains unknown.

The Indus Valley Civilization flourished from around 3300 BCE to 1800 BCE, spanning approximately 1500 years across its early, mature, and late phases.

The three most widely discussed historical theories for the collapse of the Indus Valley Civilization are natural disasters (like floods or climate change), being conquered by outside forces, and tectonic activity such as earthquakes.