Plovdiv reached an agreement that the Principality of Bulgaria and Eastern Rumelia had a common government, Parliament, administration, and army. Today 6 September is celebrated as the Unification Day and the Day of Plovdiv. After the unification, Plovdiv remained the second most populous city in Bulgaria after the capital Sofia. The first railway in the city was built in 1874 connecting it with the Ottoman capital, and in 1888, it was linked with Sofia. In 1892 Plovdiv became host of the First Bulgarian Fair with international participation which was succeeded by the International Fair Plovdiv. After the liberation, the first brewery
PFC Botev Plovdiv matches from the city rivals from Lokomotiv Plovdiv. During the second half of the 1980/81 season, "The Smurfs" (Lokomotiv Plovdiv) played their home matches on The College (which was followed by a relegation in the second division) as well as one match in the 2003/04 season (when Lokomotiv won the A PFG for the first time). Spartak Plovdiv also used the stadium for several matches during the 1995/1996 season. The stadium has also hosted the Bulgarian Cup final in 2000, when Levski Sofia won the cup after 2:0 against Naftex Burgas. In the summer of 2008, the stadium underwent renovations