circa 13,700,000,000 BCE – The Big Bang

The short version: in the beginning, there was nothing, which then exploded.

The longer version: all the matter in the universe was compressed into the smallest possible volume. Try to understand that this is so much matter that the force of gravity warps the laws of physics as we know them. The whole thing is is under so much pressure that it explodes – forming the universe as we know it as the laws of physics change radically from picosecond to picosecond, and eventually energy cools and congeals into matter.

It’s like they say: “it all started with the Big Bang

Referenced in:

The Big Bang Theory – Bare Naked Ladies

circa 4,200,000,000 BCE – The Earth’s oceans form

The majestic oceans of planet Earth were formed neither quickly nor simply. It took literally millions of years between the first surface water’s appearance and the creation of the primordial sea.

Several factors contributed to this: the gradual cooling of the Earth was the first and most important, but also important was the slow release of water from existing minerals, the condensation of steam, and even the addition of water in the form of ice from occasional cometary collisions with the planet.

The first waters soon became the habitat of early prokaryotes – whose biochemical processes led to the formation of still more water. Indeed, it is possible that the majority of water on the planet today exists as a result of these organisms.

Referenced in:

The Big Bang Theory – Bare Naked Ladies

circa 65,500,000 BCE – The Cretaceous–Tertiary extinction event wipes out the dinosaurs

Everyone loves the dinosaurs. A lot of people – if the Jurassic Park films are to be believed – would like to see them come back. But without their extinction, we wouldn’t be here today.

Even now, it’s still not clear what exactly caused the extinction event – but the best known hypothesis is that of Luis and Walter Alvarez, which states that a meteoric or cometary impact caused a nuclear winter-like effect that altered the climate drastically, wiping out something like 75% of all species alive at the time. The effects were particularly felt by larger species – which included most dinosaurs.

In the wake of the event, now open evolutionary niches were occupied by mammals and birds, including our own ancestors.

Referenced in:

The Big Bang Theory – Barenaked Ladies

circa 28,400,000 BCE – the sub-Class Allotheria becomes extinct

Note: there is no dated entry for today’s date, so I have chosen instead to include an event which, although it manifestly occurred, is impossible to date.

Not actually true mammals, but instead mammaliformes, the members of the sub-class Allotheria are distinguished from other mammals chiefly by their dentition, which featured lower molariform teeth equipped with two longitudinal rows of cusps. Extant from the Late Triassic through to the Early Oligocene, the Allotheria were rodent-like animals in appearance.

They were widespread, found on all continents including Antarctica (which was considerably warmer in this era), and included in their ranks herbivores, carnivores and omnivores. Unfortunately for biodiversity, the last of them died out between 33.9 and 28.4 million years ago, give or take 100,000 years.

Referenced in:

Mammal – They Might Be Giants

circa 600,000 BCE – The first Neanderthals evolve

The classic ‘caveman’, Neanderthals – homo neanderthalensis – were native to Europe, Western Asia and Central Asia. The earliest Neanderthal characteristics evolved at around this time – fossil evidence (admittedly incomplete) suggests that the full differentiation of the species had taken place by 130,000 BCE.

They were not, as is often thought, the ancestors of modern humanity, but rather a rival species that our ancestors wiped out in a competition for space and resources.

Referenced in:

Caveman Days – Kate Miller-Heidke
In The Days Of The Caveman – Crash Test Dummies

circa 2630 BCE – Imhotep designs and begins construction of the first Pyramid in Egypt

Imhotep was an Egyptian polymath who was what we would later call a Renaissance man. Of course, Imhotep had a 4000 year headstart on Leonardo. He served the Third Dynasty pharoah Djoser as vizier, although the complete list of his titles ran:
Chancellor of the King of Egypt, Doctor, First in line after the King of Upper Egypt, Administrator of the Great Palace, Hereditary nobleman, High Priest of Heliopolis, Builder, Chief Carpenter, Chief Sculptor and Maker of Vases in Chief.

His most notable work to modern eyes is the Step Pyramid of Saqqara, in which the pharoah Djoser was buried. It was the first pyramid, and comparitively small and primitive, but for its time it was an engineering marvel.

After his death, Imhotep was deified, one of very few Egyptians to whom this occurred (other than the pharoahs).

Referenced in:

The Big Bang Theory – Barenaked Ladies

79 – Mount Vesuvius erupts, destroying Pompeii and Herculaneum

You probably know this one: Mt Vesuvius erupted, not entirely without warning, but far more violently than anticipated, in the year 79 CE (in the reign of Emperor Titus). It is unknown how many people died – the remains of more than a thousand have thus far been discovered, but the population of Pompeii is variously estimated between 10 and 25 thousand people, with another 5000 at Herculaneum.

The eruption buried both towns in ash and mud, altered the course of the river Samo (which had flowed past Pompeii) and pushed the coastline out to sea (so that Pompeii was now inland instead of coastal). It remains the largest and deadliest of over 40 recorded eruptions of Vesuvius, although it appears that there may have been even earlier eruptions on an even greater scale.

Mt Vesuvius remains the only active volcano on the European mainland, most recently erupting on 18 March, 1944. Although the volcano has been quiet since then, it remains active, and future eruptions are regarded as inevitable.

Referenced in:

Cocoon – The Decemberists
Pompeii – Gatsbys American Dream
Cities in Dust – Siouxsie and the Banshees

1048 – Omar Khayyám is born

One of the most well-known Middle Eastern poets in the West, largely due to an apparently neverending series of translations of his Rubaiyat, Omar Khayyám was also a mathematician, an astronomer, and as his poetry tends to indicate, a philosopher. He’s one of the few people in history that could have dealt with Leonardo da Vinci as an equal, a true polymath whose work remains influential even today. Notably, he was one of the reformers who modified the Persian Calendar in 1079 – the new calendar, known as the Jalali calendar, is still in use (with some minor corrections) in Iran and Afghanistan.

Of course, he was also damned cool – legend has it that he was a boyhood friend of Hassan i Sabbah (and if you don’t know who he was, you’re in for a surprise), while modern historical research has uncovered evidence suggesting that he devised a heliocentric model of our Solar System centuries before Copernicus. Frankly, he’s a candidate for interesting historical fictions just waiting to happen.

Referenced in:
Asia – Awake
Bing Crosby – The Road to Morocco
Van Morrison – Rave On, John Donne
Edgar Broughton Band – Roccococooler

1543 – Copernicus publishes ‘De revolutionibus orbium coelestium’

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.

Referenced in:

The World’s Address – They Might Be Giants

1767 – Mason and Dixon complete the surveying of the Line between Maryland and Pennsylvania

Charles Mason, a fellow of the Royal Society and noted astronomer, and his sometime assistant, land surveyor and amateur astronomer, Jeremiah Dixon, were hired by certain wealthy interests in what was then the British colony of America to conclude a number of difficult boundary disputes in the young colonies.

Landing in Philedelphia in 1763, Mason and Dixon spent the next four years painstakingly measuring and fixing the proper boundaries between the various colonies, ceasing their work on October 18, 1867. (A team of their subordinates completed the survey in 1787.)

The lines they laid down, although resurveyed since that time, formed the basic lines of the borders between the colonies (and later the states) of Delaware, Maryland, Pennsylvania and West Virginia. Later, as these states took different sides in the Civil War, the line came to symbolise the political and cultural border between the southern and northern states.

Referenced in:

Sailing To Philadelphia – Mark Knopfler

It is also possible that Dixon’s name is the origin of the south’s nickname of “Dixie”.