and Rivadavia Avenues where trains continued to run at street level, a service that ceased on 31 December 1926. Recent developments In 1997 the Plaza Miserere station was declared a national historic monument. Over the years, most stations on the line have also been declared part of the national patrimony of Argentina and are thus protected. Unlike other lines, the original stations preserve much of their original appearance and many stations have also been restored or feature exhibits which show the history of the line. In the first expansion of the line since 1914, Puán and Carabobo stations were opened in December 2008. As part of the opening ceremony for the two stations, Buenos Aires Mayor Mauricio Macri drove one of the La Brugeoise trains. Later in September 2013, the San José de Flores and San Pedrito stations were opened, bringing the length of the line up to 9.8 km and the total number of stations to 18, while adding an additional 35,000 passengers per day to the line. That same year, the line was also converted from 1100 volts to 1500 volts to match the rest of the network. Chronology 1 December 1913 – the Line is inaugurated between Plaza de Mayo and Plaza Miserere. 1 April 1914 – extended to Río de Janeiro. 1 July 1914 – extended to Caballito (renamed to Primera Junta in 1923). 9 November 1934 – Line C built, creating a new connection at Lima station. 3 June 1937 – Line D built, creating a new connection at Perú station. 17 February 1939 – the line obtained its current name, Line A. 1953 – Pasco Sur and Alberti Norte were closed, leaving Pasco and Alberti with just one platform each. 24 April 1966 – Line E extended to Bolívar, creating another connection at Perú station. 18 October 2007 – Line H built, creating a new connection at Plaza Miserere 22 December 2008 – Line A extended to Carabobo. 27 September 2013 – Line A extended to San Pedrito. Rolling stock 1913–2013 While the line was under construction, the Anglo-Argentine Tramways Company took bids from two companies to provide the rolling stock for the line: the Belgian company La Brugeoise et Nicaise et Delcuve and the British United Electric Car Company. The tram models presented by the respective companies were the La Brugeoise cars and the UEC Preston cars. The latter was noted for its