The Roman road system did not have any influence whatsoever on the spread of democracy. Neither Rome nor the Roman Empire were democracies. Democracy was a Greek concept. There were some democracies in some Greek city-states, but then they collapsed. Democracy as we know it now started to develop some 1,200 years after the Romans.
Confucius' students had spread Confucianism in the world approximately seventy years after his death.
Changes anticipated in the next 10 years - further decline of education - spread of disease - hunger and a massive decrease in world population through these mechanisms.
it didn't spread fully in remote areas but when it first originated it took 256 years
The fall of anything democratic came about early in the Roman republic. However, thanks to their fanaticism and respect toward anything Greek, democratic ideas were spread through the world. So their contribution was merely to spread such ideas far and wide.
Greece and Italy
at the start it was but as the years went on it started to spread though out the world so your answer is no
The original Go game was invented about 4000 years ago, but the Japanese version is about 1500 years old. This complicated strategic game, so far, have spread through the whole Far East (e. g. Korea, Vietnam) and then the world.
twenty years, from the 1950's Elvis Presely through the 70's.
It started as monarchy, replaced by oligarchy, then tyranny, then limited democracy, democracy, radical democracy, and reverted to limited democracy, then oligarchy, then limited democracy, over a period of a thousand years.
300 years
Well when the little birdies pooped it out about 20 billion years