China invented gunpowder
That might be a clue
( evil_andy : devilish rogue, Mon 9 Jul 2012, 16:12, Reply)

Even giving them explosives and machines it's a lot of work.
We could spend millions to employ a couple of hundred people for 10 years and find they haven't even broken ground.
(tacpprm has a mmrpcat, Mon 9 Jul 2012, 17:32, Reply)