Decade-by-decade real equity/bond/cash returns across US, UK, Germany, Japan, France, Netherlands, Italy, Russia, China (1900–2020). Key patterns: (1) War-adjacent decades produce catastrophic real losses for countries on the losing side. (2) Hyperinflation decades (Germany 1920s) destroy bond AND equity holders in real terms simultaneously. (3) Post-war reconstruction produces strong equity returns for winners. (4) The 1970s produced negative real equity returns across almost all markets. (5) The 1980s produced exceptional returns across all major markets — driven by the Volcker disinflation regime shift.