Commerce. Political stability. Engineering. As has been noted in 150 AD a person could begin a journey in Upper Egypt and travel on maintained roads that bridged rivers, with inns, using a common currency, without a need for passports all the way to the North Sea.
That cannot be done now.
One can play the historical "what if" game endlessly. Had Rome not fallen and the sewers not collapsed into disrepair perhaps the Black Death would not have wiped out half of Europe.
Remember, xtians called bathing a sin.
http://www.bigsiteofamazingfacts.com/why...-was-a-sin
That cannot be done now.
One can play the historical "what if" game endlessly. Had Rome not fallen and the sewers not collapsed into disrepair perhaps the Black Death would not have wiped out half of Europe.
Remember, xtians called bathing a sin.
http://www.bigsiteofamazingfacts.com/why...-was-a-sin
