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...
> 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.
It's still not hard to stand on any of the trains as long as you're not right beside the door on a Tube (unless you're extremely unusually tall, but the odds are well against that).
See here: http://en.wikipedia.org/wiki/London_Underground#Trains