generate questions: Micronesians settled the Marshall Islands in the 2nd millennium BC, but there are no historical or oral records of that period. Over time, the Marshall Island people learned to navigate over long ocean distances by canoe using traditional stick charts.
Who arrived at the Marshall Islands in the second millennium BC? {sep_token} What did not exist at the time during which Micronesians arrived at the Marshall Islands? {sep_token} What vessel did early settlers of the Marshall Islands use to travel? {sep_token} What is the name of the item used as a primitive type of map for navigation by early settlers of the Marshall Islands? {sep_token} Who first settled the Marshall Islands? {sep_token} When were the Marshal Islands first settled? {sep_token} In what vehicles did the Marshall Islanders travel by water? {sep_token} What navigation aids did the Marshall Islanders use?