1922 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1922 Retrospective (pdf)
1921 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1921 Retrospective (pdf)
1920 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1920 Retrospective (pdf)
1919 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1919 Retrospective (pdf)
1918 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1918 Retrospective (pdf)
1917 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1917 Retrospective (pdf)
1916 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1916 Retrospective (pdf)
1915 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1915 Retrospective (pdf)
1914 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1914 Retrospective (pdf)
1913 Retrospective Courtesy of the Plain Dealer, a year-by-year timeline of the 20th century 1913 Retrospective (pdf)