koCRBetter Maps, Books, and Ships13
wealth: riches; money.
voyage: a long trip to a faraway place; a journey.
boundary: limit; border
achievement: success; accomplishment; something done well.
advancements: improvements; steps forward.
exploration: traveling to unknown parts of the world
astronomy: the study of the sun, stars, and the planets.
geography: the study of the Earth.
manual: a reference book; a book of information
compass: an instrument that shows direction
shipwrights: people who build ships.
vessels: ships or boats.