 Complete the following phrase:  The first electric tram service in Liège, which was also the first electric tram service in Belgium, opened to the public on 9 August 1893, connecting the northern with Herstal, to the east of the city. Only 200 meters of the line actually ran in the city centre. On 22 October 1896 the two principal horse-powered tramlines were converted to electric power, so that there was now an electric tram crossing the city centre. In 1897 a line was added connecting then considered a separate town with the centre of the city, and Angleur received a tram connection in 1905. A fourth line was also installed in 1905 for that years 