input: Gilbert Maertens gave his son his first bike, which Freddy Maertens described as "a second-hand thing that he'd got from a beach business for a bargain." Not until he won a race on that would he get a better one. The author, Rik Van Walleghem, said: "The training school that Maertens went through with his father was hard. Horribly hard. Gilbert never lost sight of anything. He knew how much and how often his son trained, what he ate and drank, how much he slept, who he went around with. He imposed a merciless regime. And he had an eye open for the slightest thing that would obstruct his son's progress. He worried, for instance, that Freddy's male hormones would get the better of his son and drive him into the arms of bewitching young girl who'd put the slides under his mission. Women were the devil's work; it had been like that in the Garden of Eden and little had changed since."  Gilbert caught his son flirting with a girl and took revenge by cutting his racing bike in half. He intervened with the army, when his son was called for national service, to ask that he not be given an easier time because of his reputation.  Maertens' relationship with his father affected the rest of his life. He rode well only when he had a dominant figure behind him: first his father, then Briek Schotte and then Lomme Driessens. His wife described him as trusting and vulnerable, that he needed care because otherwise he would be "like a bird waiting for a cat."

Answer this question "Why was it so hard?"
output: He knew how much and how often his son trained, what he ate and drank, how much he slept, who he went around with.

Problem: Background: Umar was born in Mecca to the Banu Adi clan, which was responsible for arbitration among the tribes. His father was Khattab ibn Nufayl and his mother was Hantama bint Hisham, from the tribe of Banu Makhzum. In his youth he used to tend to his father's camels in the plains near Mecca. His merchant father was famed for his intelligence among his tribe.
Context: While under his leadership, the empire expanded and he also began to build a political structure that would hold together the vast empire. He undertook many administrative reforms and closely oversaw public policy. He established an advanced administration for the newly conquered lands, including several new ministries and bureaucracies, and ordered a census of all the Muslim territories. During his rule, the garrison cities (amsar) of Basra and Kufa were founded or expanded. In 638, he extended and renovated the Masjid al-Haram (Grand Mosque) in Mecca and Al-Masjid al-Nabawi (Mosque of the Prophet) in Medina.  Umar also ordered the expulsion to Syria and Iraq of the Christian and Jewish communities of Najran and Khaybar. He also permitted Jewish families to resettle in Jerusalem, which had previously been barred from all Jews. He issued orders that these Christians and Jews should be treated well and allotted them the equivalent amount of land in their new settlements. Umar also forbade non-Muslims to reside in the Hejaz for longer than three days. He was first to establish the army as a state department.  Umar was founder of Fiqh, Islamic jurisprudence. He is regarded by Sunni Muslims to be one of the greatest Faqih. Umar as a jurist started the process of codifying Islamic Law.  In 641, he established Bayt al-mal, a financial institution and started annual allowance for the Muslims. As a leader, 'Umar was known for his simple, austere lifestyle. Rather than adopt the pomp and display affected by the rulers of the time, he continued to live much as he had when Muslims were poor and persecuted. In 638, his fourth year as caliph and the seventeenth year 17 since the Hijra, he decreed that the Islamic calendar should be counted from the year of the Hijra of Muhammad from Mecca to Medina.
Question: was there another reform?
Answer: In 641, he established Bayt al-mal, a financial institution and started annual allowance for the Muslims.

Question: Buffalo Springfield was a Canadian-American rock band active from 1966 to 1968 whose most prominent members were Stephen Stills, Neil Young, and Richie Furay. The band released three albums and several singles, including "For What It's Worth". The band combined elements of folk and country music with British invasion and psychedelic-rock influences, and, along with the Byrds, were part of the early development of folk-rock. With a name taken from a brand of steamroller, Buffalo Springfield formed in Los Angeles in 1966 with Stills (guitar, keyboards, vocals), Dewey Martin (drums, vocals), Bruce Palmer (electric bass), Furay (guitar, vocals), and Young (guitar, harmonica, piano, vocals).

Chris Hillman of the Byrds persuaded the owners of the Whisky a Go Go to give Buffalo Springfield an audition, and they essentially became the house band at the Whisky for seven weeks, from May 2 to June 18, 1966. This series of concerts solidified the band's reputation for live performances and attracted interest from a number of record labels. It also brought an invitation from Friedman to Dickie Davis (who had been the Byrds' lighting manager) to become involved in the group's management. In turn, Davis sought advice from Sonny & Cher's management team, Charlie Greene and Brian Stone; unbeknownst to Davis and Friedman, Greene and Stone then aggressively pitched themselves to the band to be their new managers. Friedman was fired, and Davis was made the group's tour manager. Greene and Stone made a deal with Ahmet Ertegun of Atlantic Records for a four-album contract with a $12,000 advance, following a brief bidding war with Elektra Records and Warner Bros. Records, and arranged for the band to start recording at Gold Star Studios in Hollywood.  The first Buffalo Springfield single, "Nowadays Clancy Can't Even Sing", was released in August, but made little impact outside Los Angeles, where it reached the Top 25. Young and Stills have long maintained that their own mono mix was superior to the stereo mix engineered by Greene and Stone. The band's eponymous album was released by the Atlantic subsidiary Atco in mono and in stereo in December 1966. A revamped version issued both in mono and stereo with a different track order was issued in March of the following year.  In November 1966, Stills composed "For What It's Worth" in response to a protest that had turned into a riot following the closing of a nightclub called Pandora's Box on Sunset Strip. The song was performed on Thanksgiving night at the Whisky a Go Go, recorded within the next few days, and on the air in Los Angeles on radio station KHJ soon afterwards. By March 1967, it was a Top Ten hit. Atco took advantage of this momentum by replacing the song "Baby Don't Scold Me" with "For What It's Worth" and re-releasing the album. "For What It's Worth" sold over one million copies and was awarded a gold disc.,

Using a quote from the above article, answer the following question: When was that released?
HHHHHH
Answer:
in December 1966.