Solar system: Did you mean...?

An illustration of the solar system by Martin Kornmesser. From The International Astronomical Union.

Earth's solar system by NASA and Rawpixel.

The Continental System was a major blockade of British trade imposed by French Emperor Napoleon I from 21 November 1806 to 11 April 1814. It was designed to cripple the British economy, thereby forcing Britain out of the Napoleonic...

Britain's integrated air defence system in the Second World War (1939-45), known as the Dowding System after the air chief marshal of that name, included code-breakers, radar stations, observers...

The Bone Rank System (Golpum or Kolpum) of ancient Korea was used in the Silla kingdom (57 BCE – 935 CE) in order to signal a person's political rank and social status. Membership of a particular rank within the system was extremely...

Ancient India in the Vedic Period (c. 1500-1000 BCE) did not have social stratification based on socio-economic indicators; rather, citizens were classified according to their Varna or castes...

The BCE/CE dating system was first used in the 17th century and has been used since in scholarly publications read by people of all faiths and cultures in an effort to be inclusive. This system is also...

From a humble beginning as a sweet treat grown in gardens, sugar cane cultivation became an economic powerhouse, and the growing demand for sugar stimulated the colonization of the New World by European powers...

The Inca road system formed a network known as the royal highway or qhapaq ñan, which became an invaluable part of the Inca empire. Roads facilitated the movement of armies, people, and goods across plains, deserts, and mountains...

The alliance system in Europe was one of the causes of the First World War (1914-18), although it did not make war inevitable. In the first decade of the 20th century, the Triple Entente powers...