The fresh new later development of antibiotics eg penicillin and state-of-the-art medical procedure elevated this number even more 1200-1300: 43 years 1300-1400: 24 ages 1400-1500: 48 many years 1500-1550: half a century 1550-1600: 47 ages 1600-1650: 43 many years 1650-1700: 41 many years...