Dashrath Manjhi carved a road through a rocky hill in Bihar, India, using only a hammer and chisel - alone - for 22 years. When he finished in 1982, the journey from his village to the nearest town dropped from 55 km to 15 km. He started because his wife, Falguni, died in 1959 after a fall on the ridge path left her unable to reach a doctor in time. The road is still used today.
