unknown facts about world

Cosmologists think that...the universe began 13.7 billion years ago (i.e., 1,370 million years ago) the contents of the universe include 4% atoms (ordinary matter) 23% of an unknown type of dark matter, and 73% of a mysterious dark energy our solar system was formed about 5 billion years ago the earth was formed about 4.5 billion years ago Paleontologists think that...invertebrate life began on earth about 600 million years ago fish evolved about 300 million years ago amphibians evolved about 150 million years ago reptiles evolved about 120 million years ago dinosaurs evolved about 80 million years ago bipedal hominids began appearing about 6 million years ago australopithicus afarensis appeared about 3.5 million years ago australopithicus africanis appeared about 2.5 million years ago australopithicus robustus appeared about 1.5 million years ago neanderthals appeared about 300k years ago homo habilis appeared about 200k years ago tools began to be used about 180k years ago fire began to be used about 150k years ago homo erectus appeared about 130k years ago homo sapiens (humans) emerged as the only hominid survivors through a series of glacial epochs (ice ages) during the last 70k years humans began to use clothing about 70k years ago the first words were spoken by humans about 40k years ago cave paintings have been identified from about 30k years ago civilizations began to be formed about 11k years ago, after the last glacial epoch (ice age) agriculture began about 11k years ago when most of the large game had been killed between approximately 3.5k and 5k years ago humans clearly deviated from ways of life based on a sustainable partnership with nature writing was invented about 5k years ago pyramids were build about 4.5k years ago the Greek civilization lasted about 2k years, from about 4k years ago to 2k years ago the Roman empire lasted about 500 years ago, from 0 to 500 AD From modern history we know that...the Renaissance and rise of Western European civilization began about 500 years ago the printing press was invented by Gutenberg in 1455 Columbus sailed to the North American continent in 1492 Australia was discovered by the Dutch in 1606 due to human activity, there has been an increase in the numbers of animal species becoming extinct:1601-1700 AD: 7 species became extinct 1701-1800 AD: 11 species became extinct 1801-1900 AD: 27 species became extinct 1901-1966 AD: 67 species became extinct the industrial revolution occurred during the 19th century, leading to industrialized and non-industrialized human civilizations in different countries in 1896, the telephone was invented in 1964, International Business Machines (IBM) coined the term "word processor"> in 1969, computers were first used to communicate synchronously since the mid-1970's, 7 million humans have died of AIDS since 1970 humans have created and stored more information than in the previous 5,000 years Currently on earth...lightening strikes the earth 100 times a second 3 lb (1.5 kg) of glucose is produced each day by a large rain forest tree lichens grow .0001 inches a day - that's one inch in 100 years enough oil is produced each day by a copaiba tree in the Amazon to fill the gas tanks of 120 cars there are 6.2 billion humans3 billion humans eat rice as the main ingredient for their meals 1.2 billion humans lack safe drinking water 1.2 billion letters are written each day 150 million searches are conducted on Google each day 40 million humans are HIV positive; 5 million of them are in Africa 30 million humans are blind 15 million Indians see a movie each day 8 million Americans have cancer; 500,000 of them die each year 7 million new documents are added to the web each day 3 million humans cross international borders each day 3 million humans camp each under canvas in France each day 1.3 million humans work each day in the armed forces of the Russian Federation 1 million phone calls are made each day by humans working in the Pentagon, Washington DC, USA 450k humans play golf each day (k = 1000) 250k humans are currently in an airplane 220k humans are born each day; 150,000 die each day47,000 humans are born in India each day; 32,000 humans are born in China each day; 7,000 humans are born in the USA each day. 170k humans visit national parks in America each day 170k humans enter France each day (#1 international destination) 140k new cars are made every dayIf all the cars and commercial vehicles were lined up, they would reach to the moon and back 3 times. 100k washing machines are made each day 60k humans work as taxi drivers in Mexico City each day 42k humans visit Disneyland in Japan each day 11k bunches of flowers are purchased each day in the United Kingdom 2k humans visit Stonehenge, Wiltshire, England, each day. 1k books are published per day 100 Americans commit suicide each day 40 computer viruses are written and distributed each day In the United States of America 100 Years Ago (1900 AD)the average life expectancy was 47 years water usage per person was one sixth of current usage14% of the homes had a bathtub most women only washed their hair once a month and used borax or egg yolks for shampoo 8% of homes had a telephone there were 8,000 cars and 144 miles of paved road the maximum speed limit in most cities was 10 mph. 95% of births took place at home. 30 people lived in Las Vegas 6 percent of Americans had graduated from high school