During the early 1600s in England, life expectancy was only about 35 years, largely because two-thirds of all children died before the age of four.[10] During the Industrial Revolution, the life expectancy of children increased dramatically.[11]
Mo tshimologong ya ngwagakgolo ya 17th, kwa England, palogare ya tsholofelo ya tshelo ya motho e ne e lekanyediwa go 35 mme lebaka e le ka ntlha ya fa pedi-tharong ya bana botlhe e ne e swa pele ga ngwaga tse nne.[4] Mo nakong tsa Industrial Revolution, tsholofelo ya tshelo ya bana e ne ya oketsega segolo.[5]