Question: When was the first railway line between Kotri and the city where Jahangir Khan was born constructed?

full_context: Document 1: List of Wimbledon gentlemen's singles champions: In the Open Era, since the inclusion of professional tennis players in 1968, Roger Federer (2003 -- 2007, 2009, 2012, 2017) holds the record for the most Gentlemen's Singles titles with eight. Björn Borg (1976 -- 1980) and Roger Federer (2003 -- 2007) share the record for most consecutive victories with five.
Document 2: Maximum break: Joe Davis compiled the first officially recognised maximum break in a 1955 exhibition match in London. In 1982, Steve Davis achieved the first official maximum in professional competition, such having been, also, the first televised one. The following year, Cliff Thorburn became the first player to make a maximum in the World Championship. Ronnie O'Sullivan holds the record of thirteen competitive maximum breaks, and he also has the record for the fastest competitive maximum break at 5 minutes 20 seconds, set at the 1997 World Championship.
Document 3: Rokujizō Station: The oldest railway in this area is the Nara Line which has been operating since 1896, but the history of Rokujizō Station began with the opening of the Keihan line in 1913 because the Nara Line did not have its station in Rokujizō until 1992.
Document 4: Saeed Meer: Saeed Meer, (born 25 November 1947, in Meerut), the former Pakistan No. 2 tennis player, had a successful Davis Cup career, with a 26–14 win–loss record.
Document 5: List of Wimbledon gentlemen's singles champions: In the Open Era, since the inclusion of professional tennis players in 1968, Roger Federer (2003 -- 2007, 2009, 2012, 2017) holds the record for most victories in the Gentlemen's Singles Final with eight. Björn Borg (1976 -- 1980) and Roger Federer (2003 -- 2007) co-hold the record for most consecutive victories with five.
Document 6: Aqeel Khan: Aqeel Khan (born 30 January 1980, in Karachi) is the current Pakistani number two and National Champion in tennis. His favourite surface is Grass. He is coached by Pakistani tennis coach Jamil Khan, who is his father. Aqeel Khan is sponsored by Jaffer Brothers (Jaffer Group of Companies).
Document 7: Sind Club: The Sind Club is the oldest club located in Karachi, Sindh, Pakistan. It was started in 1871 as an exclusive gentlemen's club.
Document 8: Liaquatabad railway station: Liaquatabad Railway Station () is an abandoned railway station on Karachi Circular Railway loop line in Sharifabad, neighborhoods of Liaquatabad Town in Karachi, Pakistan. This railway station used for KCR trains from 1969 to 1999.
Document 9: History of rail transport in India: The country's first passenger train, which ran between Bombay's Bori Bunder station and Thane on 16 April 1853, was dedicated by Lord Dalhousie. The 14 - carriage train was hauled by three steam locomotives: the Sahib, Sindh, and Sultan. Travelling 34 kilometres (21 mi), the train carried 400 people. The passenger line was built and operated by the Great Indian Peninsula Railway (GIPR). It was built in 1,676 mm (5 ft 6 in) broad gauge, which became the country's standard for railways.
Document 10: Pankaj Advani: Pankaj Arjan Advani (born 24 July 1985 in Pune) is an Indian English billiards and snooker player. In recognition of his achievements, the Government of India has bestowed several awards upon Advani: the Arjuna Award in 2004, Rajiv Gandhi Khel Ratna in 2006, and Padma Shri in 2009. He has achieved a hat - trick of hat - tricks in English billiards, holding the World, Asian, and Indian National Championship titles simultaneously, in three different years: 2005, 2008 and 2012 and recently in 2017. He became a snooker professional only in 2012, and his first season on the main tour was the 2012 / 2013 season. Advani won the 2014 IBSF World 6 - Red Snooker Championship, on his debut in that discipline. He is the only player ever to win world titles in both the long and short formats of snooker (15 - red standard, and 6 - red) and both formats of English billiards (time and point). Advani is also India's first world champion in 6 - red snooker. On 14 August 2014, Advani helped win the first ever World Team Billiards Championship held in Glasgow, Scotland, along with Rupesh Shan, Devendra Joshi and Ashok Shandilya. On 2nd February 2017, Pankaj Advani won his 29th National Championship Title at the PYC Hindu Gymkhana in Pune, India. This gave him a 39 match - winning streak. Overall, Pankaj Advani has won 58 gold: World Titles = 18; Asian Titles = 8; Asian Games = 2; Australian Open = 1; National Titles = 29.
Document 11: Jahangir Khan: Jahangir Khan, (Pashto / ; born 10 December 1963 in Karachi, Pakistan) sometimes spelled "Jehangir Khan", is a former World No. 1 professional squash player from Pakistan, who is the greatest player in the history of squash. Jahangir Khan was born into a Pashtun family originally from Neway Kelay Payan, Peshawar. During his career he won the World Open six times and the British Open a record ten times. From 1981 to 1986, he was unbeaten in competitive play. During that time he won 555 matches consecutively, the longest winning streak by any athlete in top-level professional sports as recorded by Guinness World Records. He retired as a player in 1993, and has served as President of the World Squash Federation from 2002 to 2008, when he became Emeritus President.
Document 12: Kotri Junction railway station: Kotri Junction station is among the oldest railway stations in Pakistan. It served as the northern terminus point of the Scinde Railway, which was established in March 1855. A railway line was to be constructed between Karachi and Kotri and work on the Karachi terminus commenced in April 1858. By 13 May 1861, the station opened to the public. This was the first railway line for public traffic between Karachi and Kotri, a distance of 108 miles (174 km).
Document 13: Kaunas railway station: After the Russian Empire lost the Crimean War, the importance of use of tactical use of modern inventions, as well as railways. In February 1851 the Government of Russia made a decision to build the Saint Petersburg – Warsaw Railway line. Starting from 1858 the line connecting Saint Petersburg and Warsaw was being built. In the territory of Lithuania, the construction of the railway section Daugavpils–Vilnius–Grodno including the branch Lentvaris–Kaunas–Kybartai (Virbalis) was started in spring 1859. The first railway stations in Lithuania were constructed on this line (21 stations): the super class stations in Lentvaris and Virbalis, as well as the first class stations in Kaunas and Vilnius. Due to the hilly and unfavorable for the direct rail passage terrain around Kaunas' centre, the Kaunas Railway Tunnel and largest in Lithuania railway bridge over the Nemunas river were constructed. On the 15 August 1861 the first train left Kaunas and reached Lentvaris. Kaunas railway station was officially opened on 21 February 1862. In 1944, the station was bombed by the withdrawing German army.
Document 14: Rail transport in India: The first proposals for railways in India were made in Madras in 1832. The first train in India ran from Red Hills to Chintadripet bridge in Madras in 1837. It was called Red Hill Railway. It was hauled by a rotary steam engine locomotive manufactured by William Avery. It was built by Sir Arthur Cotton. It was mainly used for transporting granite stones for road building work in Madras. In 1845, a railway was built at Dowleswaram in Rajahmundry. It was called Godavari Dam Construction Railway. It was also built by Arthur Cotton. It was used to supply stones for construction of a dam over Godavari. On May 8, 1845, Madras Railway was incorporated. In the same year East India Railway company was incorporated. On August 1, 1849, Great Indian Peninsular Railway was incorporated by an Act of Parliament. ``Guarantee System ''providing free land and guaranteed rates of return (5%) to the private English companies willing to work on building railways was finalized on August 17, 1849. In 1851, a railway was built in Roorkee. It was called Solani Aqueduct Railway. It was hauled by steam locomotive called Thomason, named after a British officer. It was used for transporting construction materials for building of aqueduct over Solani river. In 1852, the Madras Guaranteed Railway Company was incorporated.
Document 15: List of ATP number 1 ranked singles tennis players: Roger Federer holds the records for both the most total weeks at No. 1 (302) and most consecutive weeks at No. 1 (237). Pete Sampras holds the record for the most year - end No. 1 (six, all consecutive). Patrick Rafter spent the fewest time at No. 1 (one week).
ground_truth: April 1858
sub_queries: Jahangir Khan >> place of birth Answer: Karachi
the first railway line between Karachi and kotri was constructed in Answer: April 1858