The next large group of camels was brought to Australia by George Landells in 1860 for the purpose of what would be later known as the Burke and Wills' expedition from Melbourne to the Gulf of Carpentaria. These were the predecessors of today's wild camels.Camels continued to be brought over by later explorers. It was not uncommon for the explorers and/or the Afghan cameleers to release their camels, or for the camels to escape.hese were the predecessors of today's wild camels. Camels continued to be brought over by later explorers. It was not uncommon for the explorers and/or the Afghan cameleers to release their camels, or for the camels to escape.
With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.
In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere.his day of nature's equipoise was later sanctioned in a Proclamation written by McConnell and signed by Secretary General U Thant at the United Nations. A month later a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970.