Vaccines; Polio, Small pox, measles...., page-12

so why then, dear Moggs, has the average life expectancy among white people more than double since the discovery of vaccination and the development of better vaccines and other medical treatments such as antibiotics, heart surgery, broader diet, better living conditions, reduced pollution, better education and health services delivery as businesses build greater capacity for profitable operations.

3 revolutions enabled improve life expectancy: - health, education and engineering.