Developed in 1875 By a Farmer Based on Solar Cycles

Here something about the accuracy of the chart:

“A” Periods (Economic Panics)

•1927: Correct (Pre-Great Depression)
•1945: Incorrect (Post-WWII boom)
•1965: Incorrect (Minor downturn, not significant)
•1981: Correct (Early 1980s recession)
•1999: Correct (Dot-com bubble)
•2019: Correct (Pre-2020 pandemic recession)
•2035, 2053: Future predictions (excluded from accuracy calculation)

Total Predictions: 6
Correct Predictions: 4

Accuracy: 4/6 = 66.67%

“B” Periods (Good Times)

•1926: Correct (Before Great Depression)
•1935: Correct (Recovery period)
•1945: Correct (Post-WWII boom)
•1953: Correct (Post-war economic growth)
•1962: Correct (Early 1960s growth)
•1972: Incorrect (Pre-1973 oil crisis)
•1980: Incorrect (Early 1980s recession)
•1989: Correct (1980s boom)
•1999: Correct (Late 1990s tech boom)
•2007: Incorrect (Pre-2008 financial crisis)
•2016: Correct (Post-2008 recovery)

Total Predictions: 11
Correct Predictions: 8

Accuracy: 8/11 = 72.73%

“C” Periods (Hard Times)

•1924: Correct (Pre-Great Depression)
•1931: Correct (Great Depression)
•1942: Correct (WWII economic strain)
•1951: Correct (Post-war recession)
•1958: Correct (Late 1950s recession)
•1969: Correct (Pre-1970 recession)
•1978: Correct (Pre-1980s recession)
•1985: Incorrect (Minor recession, not significant)
•1996: Incorrect (Economic boom period)
•2005: Correct (Pre-2008 crisis)
•2012: Correct (Post-2008 recovery)
•2023: Too soon to evaluate
•2032, 2039, 2050, 2059: Future predictions (excluded from accuracy calculation)

Total Predictions: 10
Correct Predictions: 8

Accuracy: 8/10 = 80.00%

Overall Accuracy:

Combining the predictions for “A,” “B,” and “C” periods:

Total Predictions: 6 (A) + 11 (B) + 10 (C) = 27
Correct Predictions: 4 (A) + 8 (B) + 8 (C) = 20

Overall Accuracy: 20/27 = 74.07%