On this date in history. July 7 – Building of Hoover Dam begins

On this day in 1930, construction of the Hoover Dam begins. Over the next five years, a total of 21,000 men would work ceaselessly to produce what would be the largest dam of its time, as well as one of the largest manmade structures in the world.

Although the dam would take only five years to build, its construction was nearly 30 years in the making. Arthur Powell Davis, an engineer from the Bureau of Reclamation, originally had his vision for the Hoover Dam back in 1902, and his engineering report on the topic became the guiding document when plans were finally made to begin the dam in 1922.

Herbert Hoover, the 31st president of the United States and a committed conservationist, played a crucial role in making Davis’ vision a reality. As secretary of commerce in 1921, Hoover devoted himself to the erection of a high dam in Boulder Canyon, Colorado. The dam would provide essential flood control, which would prevent damage to downstream farming communities that suffered each year when snow from the Rocky Mountains melted and joined the Colorado River. Further, the dam would allow the expansion of irrigated farming in the desert, and would provide a dependable supply of water for Los Angeles and other southern California communities.

Even with Hoover’s exuberant backing and a regional consensus around the need to build the dam, Congressional approval and individual state cooperation were slow in coming. For many years, water rights had been a source of contention among the western states that had claims on the Colorado River. To address this issue, Hoover negotiated the Colorado River Compact, which broke the river basin into two regions with the water divided between them. Hoover then had to introduce and re-introduce the bill to build the dam several times over the next few years before the House and Senate finally approved the bill in 1928.

In 1929, Hoover, now president, signed the Colorado River Compact into law, claiming it was “the most extensive action ever taken by a group of states under the provisions of the Constitution permitting compacts between states.”

Once preparations were made, the Hoover Dam’s construction sprinted forward: The contractors finished their work two years ahead of schedule and millions of dollars under budget. Today, the Hoover Dam is the second highest dam in the country and the 18th highest in the world. It generates enough energy each year to serve over a million people, and stands, in Hoover Dam artist Oskar Hansen’s words, as “a monument to collective genius exerting itself in community efforts around a common need or ideal.”

Via The History Channel

 

Balablok

The squares led happy lives until they encountered a round. Then they declared war on the rounds to get rid of them. They battled until they couldn’t tell the difference between them anymore. Then they encounter a triangle. What to do?

On this date in history. July 6 – Althea Gibson is first African American to win Wimbledon

On this day in 1957, Althea Gibsonclaims the women’s singles tennis title at Wimbledon and becomes the first African American to win a championship at London’s All England Lawn Tennis and Croquet Club.

Gibson was born on August 25, 1927, in Silver, South Carolina, and raised in the Harlem section of New York City. She began playing tennis as a teenager and went on to win the national black women’s championship twice. At a time when tennis was largely segregated, four-time U.S. Nationals winner Alice Marble advocated on Gibson’s behalf and the 5’11” player was invited to make her U.S. Open debut in 1950. In 1956, Gibson’s tennis career took off and she won the singles title at the French Open–the first African American to do so–as well as the doubles’ title there. In July 1957, Gibson won Wimbledon, defeating Darlene Hard, 6-3, 6-2. (In 1975, Arthur Ashe became the first African-American man to win the men’s singles title at Wimbledon, when he defeated Jimmy Connors.) In September 1957, she won the U.S. Open, and the Associated Press named her Female Athlete of the Year in 1957 and 1958. During the 1950s, Gibson won 56 singles and doubles titles, including 11 major titles.

After winning Wimbledon and the U.S. Open again in 1958, Gibson retired from amateur tennis. In 1960, she toured with the Harlem Globetrotters basketball team, playing exhibition tennis matches before their games. In 1964, Gibson joined the Ladies Professional Golf Association Tour, the first black woman to do so. The trailblazing athlete played pro golf until 1971, the same year in which she was voted into the National Lawn Tennis Association Hall of Fame.

After serving as New Jersey’s commissioner of athletics from 1975 to 1985, Althea Gibson died at age 76 from respiratory failure on September 28, 2003, at a hospital in East Orange, New Jersey.

Via The History Channel