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1:The Stone Age marks a period of prehistory in which humans used primitive stone tools. Lasting roughly 2.5 million years, the Stone Age ended around 5,000 years ago when humans in the Near East began working with metal and making tools and weapons from bronze.
2:Studying history is important because it allows us to understand our past, which in turn allows us to understand our present. ... Studying history can provide us with insight into our cultures of origin as well as cultures with which we might be less familiar, thereby increasing cross-cultural awareness and understanding.
3:The Mesolithic Age. The Mesolithic Age, also known as Middle Stone Age, was the second part of the Stone Age. In India, it spanned from 9,000 B.C. to 4,000 B.C. This age is characterized by the appearance of Microliths (small bladed stone tools).
4:The Sun is mostly made of hydrogen with smaller amounts of helium in the form of plasma. The main part of the Sun has three layers: the core, radiative zone, and convection zone. The Sun's atmosphere also has three layers: the photosphere, the chromosphere, and the corona.
5:Greenwich Mean Time (GMT) has been used to clearly designate epoch by avoiding confusing references to local time systems (zones). Historically, astronomers used Greenwich Mean Astronomical Time (GMAT), in which the astronomical day began at noon at longitude (0°), in accord with scientific tradition.
6:A great circle is the largest possible circle that can be drawn around a sphere. ... The Equator is another of the Earth's great circles. If you were to cut into the Earth right on its Equator, you'd have two equal halves: the Northern and Southern Hemispheres. The Equator is the only east-west line that is a great circle.
7:Diversity in Language is the Linguistic diversity in India like people of West Bengal speak Bengali, Gujrat people talk Gujarati, Tamil And people talk Tamil etc. ... That's the linguistic diversity of India. More than 60 percentage of people speak languages belonging to the Indo-Aryan language family.
8:The Suffrage Movement refers, specifically, to the seventy-two-year-long battle for woman's right to vote in the United States. ... Famous suffragettes Elizabeth Cady Stanton and Lucretia Mott organized the first woman's rights convention in Seneca Falls, New York, in 1848.
9:A Government has three organs-
1. The Legislature- the one who makes the laws. he/she is also known as the law making body.
2. The Executive - he/she executes and enforces the laws made by the legislature and runs the administration of the country.
3. The Judiciary- it's duty is to protect the violation of the laws made by the legislature and enforced by the executive. it also protects the constitution from being violated.
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The Stone Age began about 2.6 million years ago, when researchers found the earliest evidence of humans using stone tools, and lasted until about 3,300 B.C. when the Bronze Age began. It is typically broken into three distinct periods: the Paleolithic Period, Mesolithic Period and Neolithic Period.
Did you know? Humans weren’t the first to make or use stone tools. Some 3.3 million years ago, an ancient species that lived on the shores of Lake Turkana in Kenya earned that distinction – a full 700,000 years before the earliest members of the Homo genus emerged.
Some experts believe the use of stone tools may have developed even earlier in our primate ancestors, since some modern apes, including bonobos, can also use stone tools to get food.
Stone artifacts tell anthropologists a lot about early humans, including how they made things, how they lived and how human behavior evolved over time.
Stone Age Facts
Early in the Stone Age, humans lived in small, nomadic groups. During much of this period, the Earth was in an Ice Age—a period of colder global temperatures an
Mastodons, saber-toothed cats, giant ground sloths and other megafauna roamed. Stone Age humans hunted large mammals, including wooly mammoths, giant bison and deer. They used stone tools to cut, pound, and crush—making them better at extracting meat and other nutrients from animals and plants than their earlier ancestors.
Read more: How Stone Age Human Ancestors Were Like Us
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About 14,000 years ago, Earth entered a warming period. Many of the large Ice Age animals went extinct. In the Fertile Crescent, a boomerang-shaped region bounded on the west by the Mediterranean Sea and on the east by the Persian Gulf, wild wheat and barley became plentiful as it got warmer.
Some humans started to build permanent houses in the region. They gave up the nomadic lifestyle of their Ice Age ancestors to begin farming.
Human artifacts in the Americas begin showing up from around this time, too. Experts aren’t exactly sure who these first Americans were or where they came from, though there’s some evidence these Stone Age people may have followed a footbridge between Asia and North America, which became submerged as glaciers melted at the end of the last Ice Age.
Stone Age Tools
Much of what we know about life in the Stone Age and Stone Age people comes from the tools they left behind.
Hammerstones are some of the earliest and simplest stone tools. Prehistoric humans used hammerstones to chip other stones into sharp-edged flakes. They also used hammerstones to break apart nuts, seeds and bones and to grind clay into pigment.
Archaeologists refer to these earliest stone tools as the Oldowan toolkit. Oldowan stone tools dating back nearly 2.6 million years were first discovered in Tanzania in the 1930s by archaeologist Louis Leakey.
Most of the makers of Oldowan tools were right-handed, leading experts to believe that handedness evolved very early in human history.
Read more: 6 Major Breakthroughs in Hunter-Gathere sophisticated stone tools. These included hand axes, spear points for hunting large game, scrapers which could be used to prepare animal hides and awls for shredding plant fibers and making clothing.
Not all Stone Age tools were made of stone. Groups of humans experimented with other raw materials including bone, ivory and antler” suggest a faster pace of innovation—and the emergence of disti