The uranus-neptune conjunction is the one that happens every 171.4 years (Wheeler had the 172 year drought cycle).
Three last conjunctions were … 1650, 1821, 1993
Here’s how they line up
1650 – climate turned colder and dryer 10 years later. This was actually the bottom of the Little Ice Age.
14 years later was the start of the largest depression in England – 1663, followed by Blubonic Plague (1664) and Fire of London (1665)
1821 – climate turned cold and dry 7 years later
14 years later (1835) was the start of the largest depression in US history to that date – The panic of 1937 was the really scary drop
March 1937 was the peak of the 11.2 year solar maximum.
1993 – climate turned colder and dryer 6 years later (1998 was the warmest year)
14 years later was 2007 (and the Fed has managed to keep the market up for 7 years)
April, 2014 was the peak of the most recent solar maximum.
Recessions and depressions always happen within one year after a solar maximum. They have for over 200 years.