Proposing some possible Reasons: 1. technological advancements and automation (i.e., "Tractored Out" - see http://www.livinghistoryfarm.org/farminginthe30s/mac

Proposing some possible Reasons: 1. technological advancements and automation (i.e., "Tractored Out" - see http://www.livinghistoryfarm.org/farminginthe30s/machines_02.html http://www.livinghistoryfarm.org/farminginthe30s/machines_02...) 2. population decrease (e.g., less people needed to support the wealthy, due to reason 1, causing long-term famine and eventual decrease in population) 3. wealth distribution and socialism, due to reason 1 (resulting in equalized output without increasing labor requirements)