On This Date In History

On July 20, 1969, at 10:56 p.m. EDT, American astronaut Neil Armstrong, 240,000 miles from Earth, speaks these words to more than a billion people listening at home: “That’s one small step for man, one giant leap for mankind.” Stepping off the lunar landing module Eagle, Armstrong became the first human to walk on the surface of the moon.
The American effort to send astronauts to the moon has its origins in a famous appeal President John F. Kennedy made to a special joint session of Congress on May 25, 1961: “I believe this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to Earth.” At the time, the United States was still trailing the Soviet Union in space developments, and Cold War-era America welcomed Kennedy’s bold proposal.
In 1966, after five years of work by an international team of scientists and engineers, the National Aeronautics and Space Administration (NASA) conducted the first unmanned Apollo mission, testing the structural integrity of the proposed launch vehicle and spacecraft combination. Then, on January 27, 1967, tragedy struck at Kennedy Space Center in Cape Canaveral, Florida, when a fire broke out during a manned launch-pad test of the Apollo spacecraft and Saturn rocket. Three astronauts were killed in the fire.
Despite the setback, NASA and its thousands of employees forged ahead, and in October 1968, Apollo 7, the first manned Apollo mission, orbited Earth and successfully tested many of the sophisticated systems needed to conduct a moon journey and landing. In December of the same year, Apollo 8 took three astronauts to the far side of the moon and back, and in March 1969 Apollo 9 tested the lunar module for the first time while in Earth orbit. Then in May, the three astronauts of Apollo 10 took the first complete Apollo spacecraft around the moon in a dry run for the scheduled July landing mission.
At 9:32 a.m. on July 16, with the world watching, Apollo 11 took off from Kennedy Space Center with astronauts Neil Armstrong, Edwin Aldrin Jr., and Michael Collins aboard. Armstrong, a 38-year-old civilian research pilot, was the commander of the mission. After traveling 240,000 miles in 76 hours, Apollo 11 entered into a lunar orbit on July 19. The next day, at 1:46 p.m., the lunar module Eagle, manned by Armstrong and Aldrin, separated from the command module, where Collins remained. Two hours later, the Eagle began its descent to the lunar surface, and at 4:18 p.m. the craft touched down on the southwestern edge of the Sea of Tranquility. Armstrong immediately radioed to Mission Control in Houston, Texas, a famous message: “The Eagle has landed.”
At 10:39 p.m., five hours ahead of the original schedule, Armstrong opened the hatch of the lunar module. As he made his way down the lunar module’s ladder, a television camera attached to the craft recorded his progress and beamed the signal back to Earth, where hundreds of millions watched in great anticipation. At 10:56 p.m., Armstrong spoke his famous quote, which he later contended was slightly garbled by his microphone and meant to be “that’s one small step for a man, one giant leap for mankind.” He then planted his left foot on the gray, powdery surface, took a cautious step forward, and humanity had walked on the moon.
“Buzz” Aldrin joined him on the moon’s surface at 11:11 p.m., and together they took photographs of the terrain, planted a U.S. flag, ran a few simple scientific tests, and spoke with President Richard M. Nixon via Houston. By 1:11 a.m. on July 21, both astronauts were back in the lunar module and the hatch was closed. The two men slept that night on the surface of the moon, and at 1:54 p.m. the Eagle began its ascent back to the command module. Among the items left on the surface of the moon was a plaque that read: “Here men from the planet Earth first set foot on the moon, July 1969 A.D, We came in peace for all mankind.”
At 5:35 p.m., Armstrong and Aldrin successfully docked and rejoined Collins, and at 12:56 a.m. on July 22 Apollo 11 began its journey home, safely splashing down in the Pacific Ocean at 12:51 p.m. on July 24.
There would be five more successful lunar landing missions, and one unplanned lunar swing-by, Apollo 13. The last men to walk on the moon, astronauts Eugene Cernan and Harrison Schmitt of the Apollo 17 mission, left the lunar surface on December 14, 1972. The Apollo program was a costly and labor intensive endeavor, involving an estimated 400,000 engineers, technicians, and scientists, and costing $24 billion (close to $100 billion in today’s dollars). The expense was justified by Kennedy’s 1961 mandate to beat the Soviets to the moon, and after the feat was accomplished ongoing missions lost their viability.

 

 

On July 20, 1976, on the seventh anniversary of the Apollo 11 lunar landing, the Viking 1 lander, an unmanned U.S. planetary probe, becomes the first spacecraft to successfully land on the surface of Mars.
Viking 1 was launched on August 20, 1975, and arrived at Mars on June 19, 1976. The first month of its orbit was devoted to imaging the surface to find appropriate landing sites. On July 20, 1976, the Viking 1 lander separated from the orbiter, touched down on the Chryse Planitia region of Mars, and sent back the first close-up photographs of the rust-colored Martian surface.
In September 1976, Viking 2, launched only three weeks after Viking 1, entered into orbit around Mars, where it assisted Viking 1 in imaging the surface and also sent down a lander. During the dual Viking missions, the two orbiters imaged the entire surface of Mars at a resolution of 150 to 300 meters, and the two landers sent back more than 1,400 images of the planet’s surface.

First photo sent to Earth by Viking 1 from the surface of Mars.

 On July 20, 1865, a Frenchman named Pierre Lallement arrives in the United States, carrying the plans and components for the first modern bicycle. Lallement constructed and patented the first bicycle in the United States, but received no significant reward or recognition for introducing the nation to an invention that soon became ubiquitous.
Born near Nancy, France, Lallement trained as a mechanic. He was working as a carriage builder when he first saw a dandy horse, similar to a bike, but powered directly by the rider’s feet pushing it along the ground, and began drawing up plans for a similar machine. Lallement’s major innovation was adding a transmission and pedals, which allowed for a smoother, faster, and somewhat more dignified ride. Along with another carriage builder, Pierre Marchaux, Lallement is credited with building the first working prototype for a bicycle. Due to a dispute between himself, Marchaux and his son, and the Olivier brothers with whom Marchaux went into business, however, Lallement found himself shut out of the first mass-produced bicycle business in France.
Upon arriving in the United States, Lallement settled in Ansonia, Connecticut. He demonstrated his invention for the locals, one of whom reportedly fled in terror at the sight of a “devil on wheels”, and eventually found an investor, James Carroll, to support his efforts. In 1866, he applied for and was granted a patent for the nation’s first pedaled bicycle.
Despite being the first to patent the idea, Lallement was unable to capitalize on his invention. Failing to acquire enough funds to open a factory, he sold the rights to the patent in 1868 and moved back to France, where Michaux’s bike had achieved enormous popularity and set off a “bike boom” that soon spread throughout Europe. Albert Pope, who came into possession of the patent in 1876, made a small fortune producing the Columbia bicycle and became one of the foremost proponents of the bike, forming the League of American Wheelmen in 1880. Lallement, however, died in obscurity in Boston in 1881. It would be over a century before cycling historians identified the important role he had played in the invention of the bicycle.