Panel 1 - Facts
Panel 2 - Pre 1900
Panel 4 - 1930s
Panel 5 - 1940s
Panel 6 - 1950 to 1970
Panel 7 - 1970s
Panel 8 - 1980s
Panel 9 - 1990s
Panel 10 - 2000 to present
Panel 11 - Future