Question: When was the construction of the first railway line between Kotri and the city where Wali Khan Babar died?

full_context: Document 1: 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 2: Fazaldad Wahla: A US-trained orthodontist by profession, he was killed on September 24, 1999 at his home in Angoori, Pakistan while attempting to settle a dispute involving a runaway village girl. A young girl ran away from home and her family, "shamed" by this action, attempted to kill the girl. Fazaldad Wahla tried to step in and save her, and was killed by the family.
Document 3: Taliban insurgency: After the May 2011 death of Osama bin Laden in Pakistan, many prominent Afghan figures were assassinated by the insurgents, including Mohammed Daud Daud, Ahmed Wali Karzai, Jan Mohammad Khan, Ghulam Haider Hamidi, Burhanuddin Rabbani and others. In response to this, major operations were started inside Afghanistan against the insurgents. These are intended to disrupt the network of the insurgents and force them to the negotiation table.
Document 4: 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 5: 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 6: 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 7: Adel al-Zubeidi: He was killed on November 8, 2005, by three gunmen driving in either an Opel or a "government vehicle" outside Adil, a Sunni neighbourhood of Baghdad. He was traveling with Thamer Hamoud al-Khuzaie, another lawyer associated with the trials who was wounded in the attack. The day before, he had predicted he would be murdered.
Document 8: Murder of Ján Kuciak: Ján Kuciak (17 May 1990 – 21 February 2018) was a Slovak investigative journalist. Kuciak worked as a reporter for the news website Aktuality.sk, focused mainly on investigating tax fraud of several businessmen with connections to top-level Slovak politicians. He and his fiancée, Martina Kušnírová, were shot dead in February 2018 in their home in Veľká Mača, Galanta District, Slovakia.Kuciak was the first journalist murdered in Slovakia since the country's independence. The murders caused shock and disbelief throughout the country, sparking mass popular protests and a political crisis, with the government of Prime Minister Robert Fico on one side, and President Andrej Kiska and opposition parties on the other. The crisis culminated on 15 March with the resignation of Prime Minister Fico and his entire cabinet.In September 2018, Slovak police stated that Kuciak was murdered because of his investigative work, and that the murder had been ordered. They arrested eight suspects, charging three of them with first-degree murder.
Document 9: 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 10: Hilal Al-Ahmadi: Hilal Al-Ahmadi (1954? – 17 February 2011), who was an Iraqi veteran journalist with over 30 years of experience and well known for his reports about corruption, was assassinated in front of his home east of Mosul, Iraq.
Document 11: Abu Hamza Rabia: According to American intelligence officials, Rabia was al-Qaeda's third in command. Few details have been made available about his background, although CNN reports confirmed his Egyptian origins and indicated that he was in his thirties. He and four other men, two of them also Arabs, were killed in the village of Asoray, near Miranshah, the capital of North Waziristan. His death stirred controversy because it was Pakistani policy that US forces were not allowed in the country.
Document 12: War on Terror: In September 2009, a U.S. Drone strike reportedly killed Ilyas Kashmiri, who was the chief of Harkat-ul-Jihad al-Islami, a Kashmiri militant group associated with Al-Qaeda. Kashmiri was described by Bruce Riedel as a 'prominent' Al-Qaeda member, while others described him as the head of military operations for Al-Qaeda. Waziristan had now become the new battlefield for Kashmiri militants, who were now fighting NATO in support of Al-Qaeda. On 8 July 2012, Al-Badar Mujahideen, a breakaway faction of Kashmir centric terror group Hizbul Mujahideen, on conclusion of their two-day Shuhada Conference called for mobilisation of resources for continuation of jihad in Kashmir.
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: Wali Khan Babar: Wali Khan Babar (Urdu, ; 5 April 1982 – 13 January 2011) was a Pakistani journalist working for GEO News who was killed by gunmen in the Liaquatabad area of Karachi. His murderers Saulat Mirza and Faisal Mota (who are target killers of MQM) are sentenced to death by the court on March 10, 2015. According to the Committee to Protect Journalists, Babar was the first journalist it had confirmed killed in a work-related death in 2011. Pakistan was the deadliest country for journalists in 2010. Despite the murders of several people associated with the investigation and the death of an accused, in March 2014 four people were convicted and sentenced to life imprisonment for the murder, and two others were given death sentences "in absentia".
Document 15: 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.
ground_truth: April 1858
sub_queries: Wali Khan Babar >> place of death Answer: Karachi
the first railway line between Karachi and kotri was constructed in Answer: April 1858