2,000 years significantly fewer people reached 90+ as a percentage of the population, but it still happened. We have done quite a lot in terms of infant mortal

2,000 years significantly fewer people reached 90+ as a percentage of the population, but it still happened. We have done quite a lot in terms of infant mortality, but relatively little to extend the maximum age people reach. Take 1,000 random people born 100 BC vs 1,000 people born in 1900 and the oldest person from 1900 will very likely have lived longer but probably less than 10 years longer.