A good starting point when looking at generational theory is the idea of the Crisis, the recurring period of major change that recurs every 80 to 100 years. If you are starting to feel like 2016 has been some odd rhyming repeat of 1860 or a random year in the 1930s, it might be helpful to know how the generational model predicted that we would be going through this now. Includes comparisons with past historical Crisis periods in order to make some educated guesses about what might happen next. 

References both Generations (1991) and The Fourth Turning (1997) by William Strauss & Neil Howe.