[quarterto]

> late 18th and early 19th century

The first underground lines were in 1863. That's the mid 19th century. The first deep level train (what's actually the Tube) was the City & South London Railway, opened in 1890 (late 19th century). Check yo fax.

> it’s difficult to stand in most of its trains

Not unless you're like 6' 6" (and thus taller than 99.5% of males). http://news.bbcimg.co.uk/media/images/62018000/jpg/_62018161...

[claudius]

> > late 18th and early 19th century

> opened in 1890 (late 19th century). Check yo fax.

HN, of all communities, should be familiar with off-by-one errors. My apologies for the confusion; you are right, I was referring to the late 19th and early 20th century.

[sokoloff]

"Check yo fax" is not consistent with the standards of the HN community (nor with the overall high quality of the rest of your comment).