History of Socialism

• One of the earliest devices that used rocket propulsion was called the aeolipile, designed in the 1st century AD by Heron of Alexandria, and used steam to spin a metal ball.
• Early prototypes of rockets were produced for firework displays in China in the 13th centur...

The history of positive economics can be traced back to the 19th century from the ideas of John Neville Keynes and John Stuart Mill, who were early economists. 

Keynes believed that logic and methodology were imperative in the study of economics while Mill was an economist who blended econo...

Saint Valentine of Rome was added to the Catholic calendar by Pope Gelasius in 496. By the mid-17th century, the celebration of Valentine's day in England was customary.

The first commercial valentines day appeared in England at the end of the 18th century. They combined traditional symbo...