Nelson Mandela celebrated his 80th birthday on 18 July, 1998, by marrying Graça Machel, widow of Samora Machel, the first President of Mozambique. His first wife was Evelyn Ntoko Mase and his second wife was Winnie Madikizela.
Which chemical is used in the lead of a pencil?
The chemical lead was used by the Romans as lead rods to write on papyrus. These rods left a grey mark just like graphite. Hence, graphite was believed to be a type of lead. In 1564, a graphite deposit was discovered in England, which led to its widespread use for writing. The lead used in …
Last Britons to win singles titles at Wimbledon
Fred Perry won the men’s singles title at Wimbledon in 1936, exactly 77 years before Andy Murray became the champion in 2013. He was being projected as the last Briton to win a singles title at Wimbledon before Andy Murray. But the person to get the credit is Virginia Wade, who won the women’s singles …
Which day has been observed as the World Water Day?
The United Nations General Assembly designated 22 March of each year as the World Water Day. It is held annually to focus attention on the importance of freshwater and advocate for the sustainable management of freshwater resources.
The island chain of Alaska has a moderately active volcano
Located on the Alaskan island of Unimak, Mount Shishaldin is the highest mountain in the Aleutian Islands. The snow clad mountain was formed 10,000 years ago after a volcanic eruption. It is conical in shape, which is more symmetric than Mount Fuji of Japan.
What came first: the e-mail or the World Wide Web?
The e-mail predates the Internet or the World Wide Web by more than a decade. The e-mail originated in the research labs of the United States Defence Labs in the late 1960s, in the ARPANET project. It was used as a note or a file that was transferred from one user’s folder to another user’s …