1687 – Isaac Newton publishes The Philosophiae Naturalis Principia Mathematica

The Philosophiæ Naturalis Principia Mathematica, or in English, Mathematical Principles of Natural Philosophy, is one of the foundational works of modern physics and mathematics.

In addition to being the first major treatise to seek to unify all mathematics since Euclid nearly 2000 years earlier, it built upon the works of Galileo, Copernicus, Kepler and Descartes (to name but a few). Famously, it introduced the laws of gravitation and motion, which formed the basis of classical mechanics for centuries thereafter.

Much of the Principia has stood the test of time fairly well – for the most part, it has been refined rather than replaced. Newton’s work remained supreme in mathematics until the 20th century, when relativity and quantum mechanics began to expose it limitations. And although Newton’s laws fail at these extremes, they are superb approximations at the scale of everyday life (in this case, defined as reaching from the smallest visible objects up to entire solar systems).

Referenced in:

History Lessens — Skyclad
Man on the Moon — R.E.M.

1937 – Spam is first released

Spam didn’t used to have anything to do with enlarging your penis or getting cheap medicines of dubious quality.

It was originally the name of a certain kind of meat, although the ‘dubious quality’ part is well-enshrined in urban legend – known backronyms devised for it include “Something Posing As Meat”, “Stuff, Pork and Ham” and “Spare Parts Animal Meat.” Oddly enough, Spam wasn’t even the original name of the product – it was introduced because the previous name – Hormal Spiced Ham – was losing market share.

It wasn’t until Monty Python and Joel Furr got involved years later that the word assumed its modern meaning.

By the way: according to Hormel’s trademark guidelines, Spam should be spelled with all capital letters and treated as an adjective, as in the phrase “SPAM luncheon meat” – strange but true.

Referenced in:

Spam – Save Ferris
Spam Song – Monty Python
Spam – Weird Al Yankovic