In old times people in different parts of the world kept separate histories because they did not meet each other very often. Some groups of people never met each other. The rulers of [[Medieval]] [[Europe]], [[Ancient Rome]] and [[Ancient China]] each thought that they ruled the only important parts of the [[world]] and that other parts were "[[barbarian]]". But they were still connected, even if they didn't realize it.<ref>{{Cite web|title=Silk Ties: The Links Between Ancient Rome & China {{!}} History Today|url=https://www.historytoday.com/archive/silk-ties-links-between-ancient-rome-china|access-date=2020-10-24|website=www.historytoday.com}}</ref> | In old times people in different parts of the world kept separate histories because they did not meet each other very often. Some groups of people never met each other. The rulers of [[Medieval]] [[Europe]], [[Ancient Rome]] and [[Ancient China]] each thought that they ruled the only important parts of the [[world]] and that other parts were "[[barbarian]]". But they were still connected, even if they didn't realize it.<ref>{{Cite web|title=Silk Ties: The Links Between Ancient Rome & China {{!}} History Today|url=https://www.historytoday.com/archive/silk-ties-links-between-ancient-rome-china|access-date=2020-10-24|website=www.historytoday.com}}</ref> |