Reasons for traveling include recreation, tourism or vacationing, research travel, the gathering of information, visiting people, volunteer travel for charity, migration to begin life somewhere else, religious pilgrimages and mission trips, business travel, trade, commuting, and other reasons, such as to obtain health care or waging or fleeing war or for the enjoyment of traveling. Travellers may use human-powered transport such as walking or bicycling; or vehicles, such as public transport, automobiles, trains and airplanes.
Travel dates back to antiquity where wealthy Greeks and Romans would travel for leisure to their summer homes and villas in cities such as Pompeii and Baiae. While early travel tended to be slower, more dangerous, and more dominated by trade and migration, cultural and technological advances over many years have tended to mean that travel has become easier and more accessible. Mankind has come a long way in transportation since Christopher Columbus sailed to the new world from Spain in 1492, an expedition which took over 10 weeks to arrive at the final destination; to the 21st century where aircraft allow travel from Spain to the United States overnight.