When did the london underground open?

The first section opened in 1863, and was the first underground railway system in the world. The 250 miles of the current network has been extended over the last 146 years, the most recent extension of note being the 1999 extension of the Jubilee lin  wiki.answers.com

The original feelings were mixed when it first opened. Some were excited, some were fearful of being asphyxiated some were claustrophobic some were angry over property disputes but overall Londoners were extremely proud of the amazing achievement and  wiki.answers.com