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16 hours ago · The first calendar allegedly dates back to 8th century BC during the Roman Kingdom and included 356 days plus a leap year every other year. In contrast, the lunar calendar of the Republican era contained 355 days, roughly ten-and-one-fourth days shorter than the solar year , a discrepancy that was solved by adding an extra month into the ...
16 hours ago · Infanticide (or infant homicide) is the intentional killing of infants or offspring. Infanticide was a widespread practice throughout human history that was mainly used to dispose of unwanted children, [1] : 61 its main purpose being the prevention of resources being spent on weak or disabled offspring.
16 hours ago · In 1991, the SELENE project (SpacE Laser ENErgy) had begun, which included the study of laser power beaming for supplying power to a lunar base. The SELENE program was a two-year research effort, but the cost of taking the concept to operational status was too high, and the official project ended in 1993 before reaching a space-based demonstration.
16 hours ago · In 2018, global commercial operations generated 2.4% of all CO 2 emissions. [3] Jet airliners have become 70% more fuel efficient between 1967 and 2007, and CO 2 emissions per revenue ton-kilometer (RTK) in 2018 were 47% of those in 1990. In 2018, CO 2 emissions averaged 88 grams of CO 2 per revenue passenger per km.
16 hours ago · Pennsylvania ( / ˌpɛnsɪlˈveɪniə / ⓘ, lit. 'Penn's forest country' ), officially the Commonwealth of Pennsylvania [b] ( Pennsylvania Dutch: Pennsylvanie ), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.
16 hours ago · Baruch ( de) Spinoza [b] (24 November 1632 – 21 February 1677), also known under his Latinized pen name Benedictus de Spinoza, was a Dutch philosopher of Portuguese-Jewish origin. As a forerunner of the Age of Enlightenment, Spinoza significantly influenced modern biblical criticism, 17th-century rationalism, and Dutch intellectual culture ...
16 hours ago · United Kingdom portal. v. t. e. The history of the United Kingdom began in the early eighteenth century with the Treaty of Union and Acts of Union. The core of the United Kingdom as a unified state came into being in 1707 with the political union of the kingdoms of England and Scotland, [1] into a new unitary state called Great Britain.
