They, both the "islands" Antigua and Manhattan are technically by geographical terms islands, as they are not connected by land to a continent or another body of land. They are surrounded by water, thus Isolated land, Island.
Antinous goes against the greek values of hospitality and generosity and those who go against greek values tend to be punished.
People moved around in a politically divided 'China' and across the traditionally defined Chinese borders, not just to conduct trade, but also to go on religious pilgrimages. The first extant travelogue by a Chinese author about his foreign travels was written by a Buddhist monk, Faxian
The answer to this is the glossary.