First female Prime Minister of Britain passed away

Margaret Hilda Thatcher, Baroness Thatcher, the first woman to become British prime minister, has died at the age of 87 on April 8,2013. She was a British politician, the longest-serving (1979–1990) Prime Minister of UK of the 20th century, and the only woman ever to have held the post and she was called the "Iron Lady" for her personal and political toughness.. She was born on 13 October 1925. 

Discovery Island opened & closed

Discovery Island is an 11.5 acres island  in Bay Lake at Walt Disney World in Bay Lake, Florida .

The island opened as Treasure Island on April 8, 1974, as a place to observe wildlife, and was later renamed Discovery Island when it was recognized as a zoological park. It closed to the public on April 8, 1999, but continued to operate until July 9, 1999.

World Health Organization established

World Health Organization (WHO) is a specialized agency of the UN that is concerned with international public health. It was established on 7 April 1948, with headquarters in Geneva , Switzerland, and is a member of the United Nations Development Group.

World Health Day

World Health Day is celebrated on 7 April to mark the anniversary of the founding of WHO in 1948. Each year a theme is selected for World Health Day that highlights a priority area of public health concern in the world. The theme for 2013 is high blood pressure

A solo voyage round the world.

Indian Navy officer Lt Commander Abhilash Tomy, The first Indian who embarked on a non-stop solo circumnavigation of the globe on a sail boat. He completes his voyage on April 6,2013.
He was the first Indian and the second Asian after Japanese Minoru Saito to attain the feat.

 

 

1st Modern Olympic games officially opens in Athens

The 1896 Summer Olympics, officially known as the Games of the I Olympiad, was a multi-spot event  held in Athens, Greece, from April 6 to 15, 1896. It was the first international Olympic Games held in the Modern era.

National Maritime Day of India

National Maritime Day of India falls on April 5. First celebrated on 5th April, 1964, the day marks the journey of SS Loyalty, the first ship of the Scindia Steam Navigation Company, to the United Kingdom.

The first successful artificial heart implant

On April 4, 1969, Dr. Denton Cooley, a Houston heart surgeon, performed the first successful artificial heart implant on a human patient. The artificial heart was actually developed by Cooley's cross-town rival and former colleague, Dr. Michael DeBakey, and his team. Cooley's implant operation turned the rivalry with DeBakey into a full-fledged feud that lasted for the next 40 years. DeBakey considered it a betrayal and a theft of his technology.

Father of British Neurology

John Hughlings Jackson who is known as the father of British neurology was born April 4, 1835, who studies of epilepsy, speech defects, and nervous-system disorders arising from injury to the brain and spinal cord helped to define modern neurology. He died Oct. 7, 1911.

Luna 10 orbits Moon

The Luna 10 spacecraft was launched towards the Moon from an Earth orbiting platform on March 31, 1966. The spacecraft entered lunar orbit on April 3, 1966 and completed its first orbit 3 hours later.

John Paul II dies

John Paul II sometimes called Blessed John Paul or John Paul the Great, born 18 May 1920 and died 2 April 2005, reigned as Pope of the Roman Catholic Church from 1978 until his death in 2005. He was the second longest serving Pope in history and the first non Italian since 1523.

April Fools' Day

April Fools' Day is celebrated in many countries on April 1 every year. Sometimes referred to as All Fools' Day, it is widely recognized and celebrated as a day when people play practical jokes and hoaxes on each other.

Gmail was launched

Gmail is a free, advertising-supported email service provided by Google. Users may access Gmail as secure webmail, as well as via POP3 or IMAP4 protocols. Gmail was launched as an invitation-only beta release on April 1, 2004 and it became available to the general public on February 7, 2007.

The Eiffel Tower

The Eiffel Tower is one of the most famous monuments in the world (324 meters, 10,100 tonnes) it opens on 31 March 1889, it is dedicated in Paris in a ceremony presided over by Gustave Eiffel, the tower's designer, and attended by French Prime Minister Pierre Tirard, a handful of other dignitaries, and 200 construction workers.It was built for the World Fair, where it was the star attraction.

Invention of the phototransistor was announce

The invention of the phototransistor was announced on March 30,1950 ( Murray Hill NJ). This was a transistor operated by light rather than electric current, invented by Dr. John Northrup Shive of the Bell Telephone Laboratories at Murray Hill, N.J. It used a tiny chip of germanium, a semiconductor material, but only a single collector wire. The tip of this wire rests in a small dimple ground into one side of the germanium disk. At this point the germanium disk is only three thousandths of an inch thick. Light focussed on the opposite, un-dimpled side of the disk can control the flow of current in the wire, thus making a control device similar in function to a photo-electric cell.

The first spacecraft to reach the planet Mercury

Mariner 10 was an American robotic space probe launched by NASA  on November 3, 1973, to fly by the planets Mercury and Venus The First Mercury encounter took place on March 29, 1974, at a range of 703 kilometers (437 mi), passing on the shadow side.

The first seaplane

The first seaplane took off from water at Martinques, France. The pilot was Henri Fabre. The first autonomous flight by a hydroplane was made by the French engineer Henri Fabre on March 28, 1910. A seaplane is a powered fixed-wing aircraft capable of taking off  and landing (alighting) on water. Seaplanes that can also take off and land on airfields are a subclass called amphibian aircraft.

Wilhelm Rontgen

Wilhelm Conrad Röntgen was a German physicist, who Discovered X-rays or Rontgen rays (detected electromagnetic radiation in a wavelength range) on 8 November 1895, He was born on March 27, 1845. In honour of his accomplishments, the IUPAC  named element 111, Roentgenium, a very radioactive element with multiple unstable isotopes. He died on 10 February 1923.

World Theatre Day

Every year 27 March is celebrated as World Theatre Day ( Drama Day). It was established in 1961 by the International Theatre Institute.

The first person to visit Challenger Deep

Canadian Film maker, James Cameron, becomes the first person to visit Challenger Deep( The Challenger Deep is the deepest known point in the Earth,s sea floor hydrosphere, with a depth of 10,898 m (35,755 ft ) to 10,916 m (35,814 ft) by direct measurement from submersibles, and slightly more by sonar), the deepest point on Earth in over 50 years on March 26,2012.