Question: When did the mint of the city where Chen lived in 2005 stop making circulating coins?

full_context: Document 1: YouTube: Much of YouTube's revenue goes to the copyright holders of the videos. In 2010 it was reported that nearly a third of the videos with advertisements were uploaded without permission of the copyright holders. YouTube gives an option for copyright holders to locate and remove their videos or to have them continue running for revenue. In May 2013, Nintendo began enforcing its copyright ownership and claiming the advertising revenue from video creators who posted screenshots of its games. In February 2015, Nintendo agreed to share the revenue with the video creators.
Document 2: YouTube: Conversely, YouTube has also allowed government to more easily engage with citizens, the White House's official YouTube channel being the seventh top news organization producer on YouTube in 2012 and in 2013 a healthcare exchange commissioned Obama impersonator Iman Crosson's YouTube music video spoof to encourage young Americans to enroll in the Affordable Care Act (Obamacare)-compliant health insurance. In February 2014, U.S. President Obama held a meeting at the White House with leading YouTube content creators to not only promote awareness of Obamacare but more generally to develop ways for government to better connect with the "YouTube Generation". Whereas YouTube's inherent ability to allow presidents to directly connect with average citizens was noted, the YouTube content creators' new media savvy was perceived necessary to better cope with the website's distracting content and fickle audience.
Document 3: YouTube: According to a story that has often been repeated in the media, Hurley and Chen developed the idea for YouTube during the early months of 2005, after they had experienced difficulty sharing videos that had been shot at a dinner party at Chen's apartment in San Francisco. Karim did not attend the party and denied that it had occurred, but Chen commented that the idea that YouTube was founded after a dinner party "was probably very strengthened by marketing ideas around creating a story that was very digestible".
Document 4: Steve Chen: Chen was an employee at PayPal, where he first met Chad Hurley and Jawed Karim. Chen was also an early employee at Facebook, although he left after several months to start YouTube.In 2005, Chad Hurley, Jawed Karim and Chen founded YouTube, with Chen having the position of chief technology officer. In June 2006, Chen was named by Business 2.0 as one of "The 50 people who matter now" in business.On October 16, 2006, Chen and Hurley sold YouTube to Google, Inc. for $1.65 billion. Chen received 625,366 shares of Google and an additional 68,721 in a trust as part of the sale. As of 2018, the Google shares are valued at $729 million.He and Hurley started AVOS Systems which acquired Delicious from Yahoo! Inc.
Document 5: Calaveras County Courthouse: The Calaveras County Courthouse is a historic courthouse building in San Andreas, California. The brick courthouse was built in 1867 and contained the county's courtroom, jail, and sheriff's office; until 1888, executions were also conducted in the building. The county's Hall of Records was built in front of the courthouse in 1893; the two buildings nearly touch and are considered part of the same complex. The building's jail held outlaw Black Bart, a notorious Northern California highwayman, during his 1883 trial. In 1966, the county moved its courthouse to a new building; the old courthouse is now the Calaveras County Museum, which is operated by the Calaveras County Historical Society.
Document 6: History of San Francisco: The earliest evidence of human habitation in what is now the city of San Francisco dates to 3000 BC. Native Americans who settled in this region found the bay to be a resource for hunting and gathering, leading to the establishment of many small villages. Collectively, these early Native Americans are now known as the Ohlone, and the language they spoke belonged to the Miwok family. Their trade patterns included places as far away as Baja California, the Mojave Desert and Yosemite.
Document 7: YouTube: On November 6, 2013, Google implemented a new comment system that requires all YouTube users to use a Google+ account in order to comment on videos and making the comment system Google+ oriented. The changes are in large part an attempt to address the frequent criticisms of the quality and tone of YouTube comments. They give creators more power to moderate and block comments, and add new sorting mechanisms to ensure that better, more relevant discussions appear at the top. The new system restored the ability to include URLs in comments, which had previously been removed due to problems with abuse. In response, YouTube co-founder Jawed Karim posted the question "why the fuck do I need a google+ account to comment on a video?" on his YouTube channel to express his negative opinion of the change. The official YouTube announcement received 20,097 "thumbs down" votes and generated more than 32,000 comments in two days. Writing in the Newsday blog Silicon Island, Chase Melvin noted that "Google+ is nowhere near as popular a social media network as Facebook, but it's essentially being forced upon millions of YouTube users who don't want to lose their ability to comment on videos" and "Discussion forums across the Internet are already bursting with outcry against the new comment system". In the same article Melvin goes on to say:
Document 8: California Academy of Sciences: The California Academy of Sciences is a natural history museum in San Francisco, California, that is among the largest museums of natural history in the world, housing over 26 million specimens. The Academy began in 1853 as a learned society and still carries out a large amount of original research, with exhibits and education becoming significant endeavors of the museum during the 20th century.
Document 9: San Francisco Mint: The San Francisco Mint is a branch of the United States Mint and was opened in 1854 to serve the gold mines of the California Gold Rush. It quickly outgrew its first building and moved into a new one in 1874. This building, the Old United States Mint, also known affectionately as The Granite Lady, is one of the few that survived the great 1906 San Francisco earthquake. It served until 1937, when the present facility was opened.
Document 10: San Francisco: San Francisco (initials SF) (/ ˌsæn frənˈsɪskoʊ /, Spanish for Saint Francis; Spanish: (san franˈsisko)), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California. The consolidated city - county covers an area of about 47.9 square miles (124 km), mostly at the north end of the San Francisco Peninsula in the San Francisco Bay Area. It is the fourth-most populous city in California, and the 13th-most populous in the United States, with a 2016 census - estimated population of 870,887. The population is projected to reach 1 million by 2033. As of 2016, San Francisco County was the 7th highest - income county in the United States, with a per capita personal income of $110,418.
Document 11: San Francisco: San Francisco was founded on June 29, 1776, when colonists from Spain established Presidio of San Francisco at the Golden Gate and Mission San Francisco de Asís a few miles away, all named for St. Francis of Assisi. The California Gold Rush of 1849 brought rapid growth, making it the largest city on the West Coast at the time. San Francisco became a consolidated city - county in 1856. After three - quarters of the city was destroyed by the 1906 earthquake and fire, San Francisco was quickly rebuilt, hosting the Panama - Pacific International Exposition nine years later. In World War II, San Francisco was a major port of embarkation for service members shipping out to the Pacific Theater. It then became the birthplace of the United Nations in 1945. After the war, the confluence of returning servicemen, massive immigration, liberalizing attitudes, along with the rise of the ``hippie ''counterculture, the Sexual Revolution, the Peace Movement growing from opposition to United States involvement in the Vietnam War, and other factors led to the Summer of Love and the gay rights movement, cementing San Francisco as a center of liberal activism in the United States. Politically, the city votes strongly along liberal Democratic Party lines.
Document 12: Chase Center: Chase Center is a multi-purpose arena under construction in the Mission Bay neighborhood of San Francisco. The building will mainly be used for basketball, and is planned to become the new home venue for the National Basketball Association (NBA)'s Golden State Warriors. The Warriors, who have been located in the San Francisco Bay Area since 1962, have played their home games at Oracle Arena in Oakland since 1971. The arena is scheduled to open to the public before the start of the 2019 -- 20 NBA season, with groundbreaking having occurred during the 2016 -- 17 NBA season.
Document 13: Chase Center: Chase Center is a multi-purpose arena under construction in the Mission Bay neighborhood of San Francisco that will open before the 2019 -- 20 NBA season. Groundbreaking of the arena happened during the 2016 -- 17 NBA season. It will mainly be used for basketball, becoming the new home of the Golden State Warriors of the National Basketball Association (NBA). The Warriors, who have been located in the San Francisco Bay Area since 1962, have played their home games at Oracle Arena in Oakland since 1971.
Document 14: YouTube: YouTube is a global video-sharing website headquartered in San Bruno, California, United States. The service was created by three former PayPal employees in February 2005. In November 2006, it was bought by Google for US$1.65 billion. YouTube now operates as one of Google's subsidiaries. The site allows users to upload, view, rate, share, and comment on videos, and it makes use of WebM, H.264/MPEG-4 AVC, and Adobe Flash Video technology to display a wide variety of user-generated and corporate media video. Available content includes video clips, TV clips, music videos, movie trailers, and other content such as video blogging, short original videos, and educational videos.
Document 15: YouTube: YouTube offered the public a beta test of the site in May 2005. The first video to reach one million views was a Nike advertisement featuring Ronaldinho in September 2005. Following a $3.5 million investment from Sequoia Capital in November, the site launched officially on December 15, 2005, by which time the site was receiving 8 million views a day. The site grew rapidly, and in July 2006 the company announced that more than 65,000 new videos were being uploaded every day, and that the site was receiving 100 million video views per day. According to data published by market research company comScore, YouTube is the dominant provider of online video in the United States, with a market share of around 43% and more than 14 billion views of videos in May 2010.
ground_truth: 1937
sub_queries: Where did Chen live in 2005? Answer: San Francisco
when did the San Francisco mint stop making circulating coins Answer: 1937