Question: When was Siemens opened in the place where Johann Amman died?

full_context: Document 1: Transatlantic telegraph cable: William Cooke and Charles Wheatstone introduced their working telegraph in 1839. As early as 1840 Samuel F.B. Morse proclaimed his faith in the idea of a submarine line across the Atlantic Ocean. By 1850 a cable was run between England and France. That same year Bishop John T. Mullock, head of the Roman Catholic Church in Newfoundland, proposed a telegraph line through the forest from St. John's to Cape Ray, and cables across the Gulf of St. Lawrence from Cape Ray to Nova Scotia across the Cabot Strait.
Document 2: History of mobile phones: Before the devices existed that are now referred to as mobile phones or cell phones, there were some precursors. In 1908, a Professor Albert Jahnke and the Oakland Transcontinental Aerial Telephone and Power Company claimed to have developed a wireless telephone. They were accused of fraud and the charge was then dropped, but they do not seem to have proceeded with production. Beginning in 1918, the German railroad system tested wireless telephony on military trains between Berlin and Zossen. In 1924, public trials started with telephone connection on trains between Berlin and Hamburg. In 1925, the company Zugtelephonie AG was founded to supply train telephony equipment and, in 1926, telephone service in trains of the Deutsche Reichsbahn and the German mail service on the route between Hamburg and Berlin was approved and offered to first - class travelers.
Document 3: Mathias Spieler: In the latter half of the 17th century, Marshal of the Realm of Sweden Johan Gabriel Stenbock (1640-1705) brought the Sjööe state in the parish of Holm in Enköping. Together with Mathias Spieler and architect Nicodemus Tessin the Elder (1615-1681), Stenbock built Sjöö Castle on his estate. The construction work lasted from 1669 until 1679 resulting in the shape and form in which it is today. Sjöö Castle Palace with its park is considered one of the most beautiful in Sweden, with its perfect and harmonious proportions.
Document 4: Alexander Graham Bell: The value of the Bell patent was acknowledged throughout the world, and patent applications were made in most major countries, but when Bell had delayed the German patent application, the electrical firm of Siemens & Halske (S&H) managed to set up a rival manufacturer of Bell telephones under their own patent. The Siemens company produced near-identical copies of the Bell telephone without having to pay royalties. The establishment of the International Bell Telephone Company in Brussels, Belgium in 1880, as well as a series of agreements in other countries eventually consolidated a global telephone operation. The strain put on Bell by his constant appearances in court, necessitated by the legal battles, eventually resulted in his resignation from the company.[N 19]
Document 5: August Kanitz: While a student at the University of Vienna he wrote "Geschichte der Botanik in Ungarn" (Hanover and Budapest, 1863), and soon after, "Versuch einer Geschichte der Ungarischen Botanik" (Halle, 1865). In 1866 he published a work on the flora of Slavonia, in 1877 he published a work on the flora of Montenegro, Bosnia, and Serbia and in 1879 one on that of Romania. For the last-named work he was elected (1880) a member of the Hungarian Academy of Sciences, and was made Knight of the Order of the Crown of Romania. He converted to Christianity.
Document 6: Johann Amman: Johann Amman, Johannes Amman or Иоганн Амман (22 December 1707 in Schaffhausen – 14 December 1741 in St Petersburg), was a Swiss-Russian botanist, a member of the Royal Society and professor of botany at the Russian Academy of Sciences at St Petersburg. He is best known for his ""Stirpium Rariorum in Imperio Rutheno Sponte Provenientium Icones et Descriptiones"" published in 1739 with descriptions of some 285 plants from Eastern Europe and Ruthenia (now Ukraine). The plates are unsigned, though an engraving on the dedicatory leaf of the work is signed ""Philipp Georg Mattarnovy"", a Swiss-Italian engraver, Filippo Giorgio Mattarnovi (1716-1742), who worked at the St. Petersburg Academy.
Document 7: Pavel Svinyin: Svinyin, an inveterate Anglophile, accompanied Dmitry Senyavin in the second Archipelago expedition of 1806 and was employed at the Russian consulate in Philadelphia between 1811 and 1813. He was an aide-de-camp to General Moreau and was present when he died. His first book, "Sketches of Moscow and St. Petersburg" (1813), made its first appearance in Pennsylvania in English. He left one of the first written depictions of black church music in the United States and launched the publication of the literary magazine "Otechestvennye Zapiski" in 1818.
Document 8: Oleg Polunin: Educated at Magdalen College, Oxford, Oleg Polunin taught at Charterhouse School in Godalming, Surrey, for over 30 years, later devoting his time to writing popular and authoritative guides to the flora of Europe and the Himalaya. His most well-known work is "Flowers of Europe" (1969), a classic text for both botanists and general readers. Polunin travelled widely in pursuit of samples and photographs, and he discovered several new species.
Document 9: Vasily Zuyev: Zuyev participated in the academy's expeditions (1768–74) under the command of Peter Simon Pallas. In 1781–82 he traveled to the region of the Bug and lower Dniepr rivers, which he described in the book "Travel Notes From St. Petersburg to Kherson in 1781 and 1782" (1787). He wrote a number of works on zoology, chiefly on the taxonomy of fish. Zuyev was the author of the first Russian manual on natural science, "Outline of Natural History" (parts 1–2, 1786).
Document 10: Siemens: Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on 12 October 1847. Based on the telegraph, their invention used a needle to point to the sequence of letters, instead of using Morse code. The company, then called Telegraphen-Bauanstalt von Siemens & Halske, opened its first workshop on 12 October.In 1848, the company built the first long-distance telegraph line in Europe; 500 km from Berlin to Frankfurt am Main. In 1850, the founder's younger brother, Carl Wilhelm Siemens, later Sir William Siemens, started to represent the company in London. The London agency became a branch office in 1858. In the 1850s, the company was involved in building long distance telegraph networks in Russia. In 1855, a company branch headed by another brother, Carl Heinrich von Siemens, opened in St Petersburg, Russia. In 1867, Siemens completed the monumental Indo-European telegraph line stretching over 11,000 km from London to Calcutta.
Document 11: Pavel Schilling: Schilling's first electromagnetic telegraph cable line was set up in his apartment in St Petersburg. In 1832, Schilling demonstrated the long-distance transmission of signals by positioning two telegraphs of his invention—his device was said to be the first electromagnetic telegraph in the world—in two different rooms of his apartment. Schilling was the first to put into practice the idea of a binary system of signal transmissions. Schilling's contributions to electrical telegraphy were named an IEEE Milestone in 2009.
Document 12: Carl Heinrich von Siemens: Carl Heinrich von Siemens (often just Carl von Siemens) (3 March 1829 in Menzendorf, Mecklenburg – 21 March 1906 in Menton, France) was a German entrepreneur, a child (of fourteen) of a tenant farmer of the Siemens family, an old family of Goslar, documented since 1384. He is a brother of Ernst Werner von Siemens and William Siemens, sons of Christian Ferdinand Siemens (31 July 1787 – 16 January 1840) and wife Eleonore Deichmann (1792 – 8 July 1839). They had two more brothers, Hans Siemens (1818–1867) and Friedrich August Siemens (December 8, 1828-May 24, 1904), married and father to Friedrich Carl Siemens (6 January 1877 – 25 June 1952 in Berlin), married on May 22, 1920 in Berlin to Melanie Bertha Gräfin Yorck von Wartenburg (1 February 1899 in Klein Oels – 15 May 1950 in Berlin) (the parents of Heinrich Werner Andreas Siemens (born 28 September 1921) Annabel Siemens (born 3 May 1923), Daniela Siemens (born 31 July 1926) and Peter Siemens (born 8 November 1928).
Document 13: Telecommunications in India: Telecommunications in India began with the introduction of the telegraph. The Indian postal and telecom sectors are one of the worlds oldest. In 1850, the first experimental electric telegraph line was started between Calcutta and Diamond Harbour. In 1851, it was opened for the use of the British East India Company. The Posts and Telegraphs department occupied a small corner of the Public Works Department, at that time.
Document 14: Johannes Burman: Johannes Burman (26 April 1707 in Amsterdam – 20 February 1780), was a Dutch botanist and physician. Burman specialized in plants from Ceylon, Amboina and Cape Colony. The name Pelargonium was introduced by Johannes Burman.
Document 15: Elevator: The first electric elevator was built by Werner von Siemens in 1880 in Germany. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary. The safety and speed of electric elevators were significantly enhanced by Frank Sprague who added floor control, automatic elevators, acceleration control of cars, and safeties. His elevator ran faster and with larger loads than hydraulic or steam elevators, and 584 electric elevators were installed before Sprague sold his company to the Otis Elevator Company in 1895. Sprague also developed the idea and technology for multiple elevators in a single shaft.
ground_truth: 1855
sub_queries: Johann Amman >> place of death Answer: St Petersburg
when was the brand opened in St Petersburg ? Answer: 1855