Portal:North America

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The Olmec colossal heads are stone representations of human heads sculpted from large basalt boulders. They range in height from 1.17 to 3.4 metres (3.8 to 11.2 ft). The heads date from at least 900 BC and are a distinctive feature of the Olmec civilization of ancient Mesoamerica. All portray mature individuals with fleshy cheeks, flat noses, and slightly-crossed eyes; their physical characteristics correspond to a type that is still common among the inhabitants of Tabasco and Veracruz. The backs of the monuments often are flat. The boulders were brought from the Sierra de Los Tuxtlas mountains of Veracruz. Given that the extremely large slabs of stone used in their production were transported over large distances (over 150 kilometres (93 mi)), requiring a great deal of human effort and resources, it is thought that the monuments represent portraits of powerful individual Olmec rulers. Each of the known examples has a distinctive headdress. The heads were variously arranged in lines or groups at major Olmec centres, but the method and logistics used to transport the stone to these sites remain unclear. They all display distinctive headgear and one theory is that these were worn as protective helmets, maybe worn for war or to take part in a ceremonial Mesoamerican ballgame. The discovery of the first colossal head at Tres Zapotes in 1862 by José María Melgar y Serrano was not well documented nor reported outside of Mexico.

The excavation of the same colossal head by Matthew Stirling in 1938 spurred the first archaeological investigations of Olmec culture. Seventeen confirmed examples are known from four sites within the Olmec heartland on the Gulf Coast of Mexico. Most colossal heads were sculpted from spherical boulders but two from San Lorenzo Tenochtitlán were re-carved from massive stone thrones. An additional monument, at Takalik Abaj in Guatemala, is a throne that may have been carved from a colossal head. This is the only known example from outside the Olmec heartland. (Full article...)

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Credit: Frank S. Nicholson

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Neil Alden Armstrong (August 5, 1930 – August 25, 2012) was an American astronaut and aeronautical engineer who in 1969 became the first person to walk on the Moon. He was also a naval aviator, test pilot, and university professor.

Armstrong was born and raised in Wapakoneta, Ohio. He entered Purdue University, studying aeronautical engineering, with the U.S. Navy paying his tuition under the Holloway Plan. He became a midshipman in 1949 and a naval aviator the following year. He saw action in the Korean War, flying the Grumman F9F Panther from the aircraft carrier USS Essex. After the war, he completed his bachelor's degree at Purdue and became a test pilot at the National Advisory Committee for Aeronautics (NACA) High-Speed Flight Station at Edwards Air Force Base in California. He was the project pilot on Century Series fighters and flew the North American X-15 seven times. He was also a participant in the U.S. Air Force's Man in Space Soonest and X-20 Dyna-Soar human spaceflight programs. (Full article...)

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The Canadian (French: cheval canadien) is a horse breed from Canada. It is a strong, well-muscled horse, usually dark in colour. It is generally used for riding and driving. Descended from draft and light riding horses imported to Canada in the late 1600s from France, it was later crossed with other British and American breeds. During the 18th century the Canadian horse spread throughout the northeastern US, where it contributed to the development of several horse breeds. During the peak popularity of the breed, three subtypes could be distinguished, a draft horse type, a trotting type and a pacing type. Thousands of horses were exported in the 19th century, many of whom were subsequently killed while acting as cavalry horses in the American Civil War. These exports decreased the purebred Canadian population almost to the point of extinction, prompting the formation of a studbook and the passage of a law against further export.

Experimental breeding programs in the early 20th century succeeded in re-establishing the breed to some extent, but mechanization, combined with two world wars, again resulted in the breed almost becoming extinct. In the 1980s, concerned with the declining population numbers, interested breeders undertook a promotional program, which resulted in renewed interest in the breed. By the 1990s, population numbers were higher, and genetic studies in 1998 and 2012 found relatively high levels of genetic diversity for a small breed. However, livestock conservation organizations still consider the breed to be at risk, due to low population numbers. (Full article...)