The San Francisco earthquake of 1906 was a major earthquake that struck San Francisco and the coast of northern California at 5:12am on Wednesday, April 18, 1906. The most widely accepted estimate for the magnitude of the earthquake is a mo...

The Tunguska event, or Tunguska explosion, was a powerful explosion that occurred not far from the Podkamennaya (Lower Stony) Tunguska River in what is now Krasnoyarsk Krai in Russia, at 00:13:35 Greenwich Mean Time (around 07:14 local time...

The Universal Declaration of Human Rights (UDHR) is a declaration adopted by the United Nations General Assembly (10 December 1948 at Palais de Chaillot, Paris). The Guinness Book of Records describes the UDHR as the "Most Translated Docume...

Dolly (July 5, 1996 – February 14, 2003), a ewe, was the first mammal to be cloned from an adult somatic cell. The cell used was a mammary cell, which is why she was named Dolly, after the curvaceous country western singer Dolly Parton. She...

A tsunami is a series of waves generated when a body of water is rapidly displaced on a massive scale. The deadliest tsunami in recorded history, the Indian Ocean tsunami on Sunday, 26th December 2004, killed about 300,000 people. It was tr...

The Fukushima Daiichi nuclear disaster was a catastrophic failure at the Fukushima I Nuclear Power Plant on 11 March 2011, resulting in a meltdown of four of the plant's six nuclear reactors. The failure occurred when the plant was hit by t...