The earliest known member of the genus Homo, habilis evolved on the savannah of Africa between 2.5 and 2 million years ago. They are believed to have been the earliest part of our evolutionary chain to have been fully bipedal, to have lost (almost all of) the body hair that other primates have, and to have lived entirely on the ground – although possibly still gathering fruit from and seeking shelter in trees, much as we still do.
The reasons for this evolutionary move are many, but some of the more important ones include greater access to water, increased dietary variety and increased use of tools in hunting, which also made defence against predators easier than it had been for their australopithicene ancestors.
Technically, this is actually the date of Copernicus’ death, however, since no authoritative dating other than ‘shortly before his death’ exists for the publication of ‘De revolutionibus orbium coelestium’, I have chosen to use this date.
‘De revolutionibus orbium coelestium’, or in English, ‘On the Revolutions of the Heavenly Spheres” is the single most famous work regarding the heliocentric theory of the solar system, i.e. the theory that the planets revolve around the Sun. It inspired considerable controversy in its day, which is one reason why Copernicus published it when he did – the historical evidence suggests that it was written between 1510 and 1530 – and effectively disproved the Platonic theory that the sun and planets revolved around the Earth.
One of the most revolutionary theories of physics of all time, Albert Einstein’s General Theory of Relativity turned the celestial mechanics of Isaac Newton on its head, and set the stage for the quantum mechanical revolution in physics that characterised the Twentieth Century. Along with Heisenberg, Bohr, Schrodinger, Feynmann and others, Einstein’s work changed the way we understand our world, but even in that august company, Einstein is a titan among giants, a man whose name has become a byword for genius.
The General Theory of Relativity resists easy summation. It was created to reconcile various anomalies in Newton’s theory of Universal Gravitation, as well as between Newton and Einstein’s earlier Special Theory of Relativity, and forms an important part of our current understanding of physics, gravitation and cosmology – the Big Bang Theory draws upon it, for example.
By <a href=”https://en.wikipedia.org/wiki/en:Ferdinand_Schmutzer” class=”extiw” title=”w:en:Ferdinand Schmutzer”>Ferdinand Schmutzer</a> – <a rel=”nofollow” class=”external free” href=”http://www.bhm.ch/de/news_04a.cfm?bid=4&jahr=2006″>http://www.bhm.ch/de/news_04a.cfm?bid=4&jahr=2006</a> [<span title=”” class=”plainlinks”><a class=”external text” href=”https://en.wikipedia.org/wiki/Wikipedia:Link_rot”>dead link</a></span>], <a rel=”nofollow” class=”external text” href=”https://web.archive.org/web/20070211064905/http://www.bhm.ch/de/news_04a.cfm?bid=4&jahr=2006″>archived copy</a> (<a rel=”nofollow” class=”external text” href=”https://web.archive.org/web/20071025130813/http://www.bhm.ch/downloads/11_Einstein_1921.jpg”>image</a>), Public Domain, Link
As mentioned in:
The World’s Address — They Might Be Giants
One of the defining events of its era, the assassination of President Kennedy remains a remarkably controversial one, even today. Conspiracy theories abound as to who shot Kennedy and why.
While the official story, that Lee Harvey Oswald did it, with the rifle, in the book depository, is plausible, it is also notably incomplete – there are any number of holes and anomalies in it. The murder of Oswald only two days later, before he could stand trial, has done nothing to quell these uncertainties.
On a symbolic level, the death of Kennedy was the end of an era in many ways. Quite aside from the idealism that he brought to the nation, his death marked a change in the way America saw itself – no longer the lily-white paladin, but more the grim avenger willing do the dirty work no one else would – although in fairness, this change of self-image would take the rest of the decade to be complete.
The Selma to Montgomery marches were a series of civil rights protests held in Alabama during March 1965. The first of them took place on March 7 of that year, when between a group of 500 and 600 negroes began a march from Selma to Montgomery, the state capitol, with the intention of registering to vote – something legally permitted under the United States Civil Rights Act of 1964, but resisted with every legal means and quite a few extra-legal means in many states, especially in the southern United States.
The march began peacefully, but when the marchers reached the Edmund Pettus Bridge, which spanned both the Alabama river and the Dallas County line, their path was blocked by state troopers and county policemen, some of them deputised specifically for this task. The police attacked the marches with batons, tear gas and mounted charges. 17 marchers were hospitalised and 50 more treated for lesser injuries. A photograph of Amelia Boynton, beaten unconscious and lying on the road of the bridge, became front page news, and the reaction was swift. President Lyndon Johnson and Martin Luther King both condemned the violence, as did many others. A second march was held on Tuesday, March 9, and a third on March 21-25. The third march began with around 8000 people, but that number had swelled to 25000 by its final day. In the end, the voting rights of the protesters were upheld by the courts, but the struggle was long and painful.
The commander of the Apollo 14 mission, Alan Shepard holds several unique distinctions. He is the only member of the Mercury 7 astronauts to have walked on the Moon and also the oldest person to have walked there (in terms of age at the time he did it). His mission was the first to broadcast colour video from the surface of the Moon and made the most accurate landing of all the Apollo missions. And, of course, he is the first man to have hit golf balls (two of them) on the Moon.
Shepard came home to the hero’s welcome that astronauts traditionally received, and was promoted from Captain to Rear-Admiral after the successful completion of his mission. He retired from the US Navy and NASA, becoming a successful businessman, and eventually died from leukemia in 1998, 21 years to the day from Armstrong’s first moon walk.
His golf balls are presumably still somewhere on the lunar surface.
They Might Be Giants’ third studio album, and probably their best known, “Flood” features their single best known song – a cover of “Istanbul (Not Constantinople)” – as well as “Birdhouse in Your Soul” which was a top ten hit in both the US and UK. It would go on to be their best selling album, achieving platinum status in 2009.
The album as a whole is one of the most consistently excellent of all their albums, and is widely regarded as their best (although that may be something of an artifact of it being the most widely owned of their albums). It would be followed up by “Apollo 18” two years later.