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HUMAN CIVILIZATION

When did agriculture begin?

Agriculture began about 10 to 12 thousand years ago in a time period known as the first agricultural revolution. It was at this time that humans began to domesticate plants and animals for food. Before the agricultural revolution, people relied on hunting wild animals and gathering wild plants for nutrition. This revolution took place almost simultaneously in different areas of human settlement.

Where did agriculture begin?

Agriculture simultaneously began in what is known now as the Middle East (Fertile Crescent), the Yangtze River Region of southern China, the Yellow River Region of northern China, Sub Saharan Africa, South-Central Andes near modern day Peru, Bolivia and Chile, Central Mexico, and the eastern United States.

What is the difference between cultivation and domestication?

Cultivation is the deliberate attempt to sow and manage essentially wild plants and seed. Domestication is when people experiment and consciously select the right seeds to grow for various conditions.

When was the second agricultural revolution?

The second agricultural revolution occurred in the seventeenth century. During this time, production and distribution of agricultural products were improved through machinery, vehicles, and tools, which allowed more people to move away from the farm and into the cities. This mass migration from rural areas to urban areas coincided with the beginning of the industrial revolution.

What was the industrial revolution?

The industrial revolution began in the eighteenth century in England with the transformation from an agricultural-based economy to an industrial-based economy. It was a period of increased development in industry and mechanization that improved manufacturing and agricultural processes, thereby allowing more people to move to the cities. It included the development of the steam engine and the railroad.

What is the green revolution?

The green revolution began in the 1960s as an effort by international organizations (especially the United Nations) to help increase the agricultural production of less developed nations. Since that time, technology has helped improve crop output, which is reaching all-time highs throughout the world.

How much of the world's population is devoted to agriculture?

In less-developed countries, such as Asia and Africa, a majority of the population is engaged in agricultural activity. In the more-developed countries of Western Europe and North America, less than one tenth of the population relies on agriculture for their livelihood.

How were animals first domesticated?

Dogs were probably some of the first animals to become domesticated. Wild dogs probably came close to human villages scavenging for food and were quickly trained as companions and protectors. Over time, early agriculturalists realized the value of domesticating other animals and proceeded to do so. Many different kinds of animals were domesticated in different areas of the world.

PEOPLE AND COUNTRIES

What is the largest country in the world?

Russia is by far the largest at about 6.6 million square miles (17.1 million square kilometers). Russia is followed in size by Canada, China, the United States, Brazil, Australia, India, Argentina, Kazakhstan, and Sudan.

How many people live on the planet?

As of 2008, approximately 6.7 billion people inhabit Earth. This number is increasing at a rate of around one percent per year.

Which 10 countries have the most people?

Country

2008 Population

China

1.3 billion

India

1.1 billion

United States

303 million

Indonesia

234 million

Brazil

190 million

Pakistan

164 million

Bangladesh

150 million

Russia

141 million

Nigeria

135 million

Japan

127 million

 
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