Many forerunners and founding fathers of America hailed from the East, American westward expansion was considered to be the hallmark because of many reasons. It all started when Thomas Jefferson bought Louisianan territory from France, he believed that for America to become a powerful block in the world, its west ward expansion is necessary.
There was vast and cheap availability of fertile lands in the west which could be used for erecting major factories and create employment opportunities that were mostly low paid in the east due to European restrictions.
Gold Rush in Oregon was an alluring factor for westward expansion. Environment in the west was compliant and the land was productive.
The Phoenicians developed phonetics- or sounds of letters and words, and spelling, that we still use today, they were also very skilled in making purple dye which was in high demand during their time.
All three of these are true. That's why you can still find many of the islands inhabited by small groups of people that migrated there thanks to the Lapita technological advancements.