General Science (One-liner)

KEY POINTS

• Science is originated from the Latin word “Scienta” which means knowledge or understanding.

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• Scientific knowledge is obtained through observations and experiments.

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• World Health Organization (WHO) started a campaign to eradicate smallpox in 1967.

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• The last case of smallpox occurred in 1977 in Somalia.

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• WHO declared the world free from smallpox on 8 May, 1980

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• Smallpox is the only disease that has been completely wiped out throughout the world.

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• Treatment of retina with the help of LASER is an example of “Micro-surgery”.

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• The Greek period ranges from 300 to 600 BC.

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• The Muslim period of science ranges from 7^th to 13^th Century AD.

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• European period of science ranges from 1700 to 1900 BC.

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