The Karmic Life Path spans seven 13-year periods from Childhood → Young adult → Midlife → Elderhood. Neil Howe’s 4th Turning in the United States: The authors describe each turning as lasting about 20–22 years. Four turnings make up a full cycle of about 80 to 90 years, which the authors term a saeculum, after the Latin word meaning both “a long human life” and “a natural century”. The previous saeculums were New World, Revolutonary, Civil War, and Great Power. The current Millennial saeculum began in 1943 and Howe now expects it to last until 2030.