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Earth Day is an annual event on April 22 to demonstrate support for environmental protection.First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries.
At Earth's poles the Sun appears at the horizon only and all day around equinox, marking the change between the half year long polar night and polar day.The picture shows the South Pole right before March equinox, with the Sun appearing through refraction despite being still below the horizon.
Dive into Earth Day's rich history and global influence. Uncover its origins and ongoing relevance in shaping environmental consciousness. Everything to know about the history of Earth Day
A 24-hour day contained twelve Dannas, [11] which in turn, taking into account the Babylonian model of the mean sun [clarification needed], comprised twelve equinoctial units, each lasting 120 minutes [12] The equivalent hours had the Sumerian System of the distance covered on foot in broad daylight as a basis. The unit of measurement, which ...
For Earth Day on April 22, interesting facts including who invented it, why it's on that date, and how it turned into a global movement.
Known affectionately to scientists as the "boring billion," there was a seemingly endless period in the world's history when the length of a day stayed put. The time when a day on Earth was just ...
In its apparent motion on the day of an equinox, the Sun's disk crosses the Earth's horizon directly to the east at sunrise; and again, some 12 hours later, directly to the west at sunset. The March equinox, like all equinoxes, is characterized by having an almost exactly equal amount of daylight and night across most latitudes on Earth. [14]
The Chinese Earth goddess Hou Tu [6] is similar to Gaia, the Greek goddess personifying the Earth. Bhumi Devi is the goddess of Earth in Hinduism, [7] influenced by Graha. The Tuluva people of Tulunadu in Southern India celebrate a Three Day "Earth Day" called Keddaso. This festival comes in usually on 10th,12th,13 February every Calendar year.