Problem: Background: William Martin Joel was born in the Bronx on May 9, 1949, and was raised in Levittown, New York in the town of Oyster Bay. In 1963 when zip codes were assigned, the section of Levittown in Oyster Bay was given a Hicksville, New York zip code and has since been part of Hicksville. Joel's father, Howard (born Helmuth) Joel, a classical pianist, was born in Germany, to a Jewish family, the son of a merchant and manufacturer, Karl Amson Joel. Howard emigrated to Switzerland and later to the United States (via Cuba, as immigration quotas for German Jews prevented direct immigration at the time) to escape the Nazi regime.
Context: Influenced by early-rock-and-roll and rhythm-and-blues artists, including groups such as The Beatles, The Drifters and The Four Seasons, he favored tightly-structured pop melodies and down-to-earth, unpretentious songwriting.  After seeing The Beatles on The Ed Sullivan Show, Joel decided to pursue a career in music. In an interview he said of the group's impact, "That one performance changed my life ... Up to that moment I'd never considered playing rock as a career. And when I saw four guys who didn't look like they'd come out of the Hollywood star mill, who played their own songs and instruments, and especially because you could see this look in John Lennon's face - and he looked like he was always saying: 'F--- you!' - I said: 'I know these guys, I can relate to these guys, I am these guys.' This is what I'm going to do - play in a rock band'."  Joel joined the Echoes, a group that specialized in British Invasion covers. The Echoes began recording in 1965. Joel (then 16) also played piano on several records released through Kama Sutra Productions and on recordings produced by Shadow Morton. Joel played on a demo version of "Leader of the Pack", which would become a major hit for the Shangri-Las. Joel states that in 1964 he played on a recording of the Shangri-Las' "Remember (Walking in the Sand)" but he is unaware of whether he played on the demo or master version; The released single included a co-producer credit for Artie Ripp, who later was the first to sign and produce Joel as a solo artist after Michael Lang, who had given Joel a monetary advance, passed Joel along to Ripp to focus his attentions elsewhere instead.  In late 1965, the Echoes changed their name to the Emeralds and then to the Lost Souls. Joel left the band in 1967 to join the Hassles, a Long Island group that had signed with United Artists Records. Over the next year and a half they released four singles and two albums (The Hassles and Hour of the Wolf). All were commercial failures. Joel and drummer Jon Small left the Hassles in 1969 to form the duo Attila, releasing an eponymous debut album in July 1970. The duo disbanded the following October when Joel began an affair with Small's wife, Elizabeth, whom Joel eventually married.
Question: What happened in 1965?
Answer: Joel joined the Echoes, a group that specialized in British Invasion covers. The Echoes began recording in 1965.

Problem: Background: Lee de Forest was born in 1873 in Council Bluffs, Iowa, the son of Anna Margaret (nee Robbins) and Henry Swift DeForest. He was a direct descendant of Jesse de Forest, the leader of a group of Walloon Huguenots who fled Europe in the 17th Century due to religious persecution. De Forest's father was a Congregational Church minister who hoped his son would also become a pastor. In 1879 the elder de Forest became president of the American Missionary Association's Talladega College in Talladega, Alabama, a school "open to all of either sex, without regard to sect, race, or color", and which educated primarily African-Americans.
Context: One of de Forest's areas of research at Federal Telegraph was improving the reception of signals, and he came up with the idea of strengthening the audio frequency output from a grid Audion by feeding it into a second tube for additional amplification. He called this a "cascade amplifier", which eventually consisted of chaining together up to three Audions.  At this time the American Telephone and Telegraph Company was researching ways to amplify telephone signals to provide better long-distance service, and it was recognized that de Forest's device had potential as a telephone line repeater. In mid-1912 an associate, John Stone Stone, contacted AT&T to arrange for de Forest to demonstrate his invention. It was found that de Forest's "gassy" version of the Audion could not handle even the relatively low voltages used by telephone lines. (Due to the way he constructed the tubes, de Forest's Audions would cease to operate with too high a vacuum.) However, careful research by Dr. Harold D. Arnold and his team at AT&T's Western Electric subsidiary determined that by improving the tube's design, it could be more fully evacuated, and the high vacuum allowed it to successfully operate at telephone line voltages. With these changes the Audion evolved into a modern electron-discharge vacuum tube, using electron flows rather than ions. (Dr. Irving Langmuir at the General Electric Corporation made similar findings, and both he and Arnold attempted to patent the "high vacuum" construction, but the U.S. Supreme Court ruled in 1931 that this modification could not be patented).  After a delay of ten months, in July 1913 AT&T, through a third party who disguised his link to the telephone company, purchased the wire rights to seven Audion patents for $50,000. De Forest had hoped for a higher payment, but was again in bad financial shape and was unable to bargain for more. In 1915, AT&T used the innovation to conduct the first transcontinental telephone calls, in conjunction with the Panama-Pacific International Exposition at San Francisco.
Question: What was this happening
Answer:
One of de Forest's areas of research at Federal Telegraph