Discovery timeline

142 designs, each placed at the year of its cited primary source. 108 designs without a dated source are left out.

  1. 1609

  2. 1619

  3. 1637

  4. 1638

  5. 1662

  6. 1673

  7. 1677

  8. 1687

  9. 1690

  10. 1691

  11. 1696

  12. 1738

  13. 1740

  14. 1772

  15. 1785

  16. 1788

  17. 1804

  18. 1809

  19. 1827

  20. 1829

  21. 1832

  22. 1834

  23. 1835

  24. 1838

  25. 1841

  26. 1842

  27. 1850

  28. 1851

  29. 1853

  30. 1857

  31. 1863

  32. 1865

  33. 1871

  34. 1873

  35. 1877

  36. 1878

  37. 1887

  38. 1888

  39. 1897

  40. 1901

  41. 1902

  42. 1905

  43. 1909

  44. 1911

  45. 1912

  46. 1913

  47. 1916

  48. 1918

  49. 1920

  50. 1921

  51. 1922

  52. 1924

  53. 1925

  54. 1926

  55. 1927

  56. 1928

  57. 1929

  58. 1931

  59. 1932

  60. 1933

  61. 1934

  62. 1935

  63. 1936

  64. 1937

  65. 1939

  66. 1941

  67. 1944

  68. 1948

  69. 1949

  70. 1951

  71. 1956

  72. 1957

  73. 1961

  74. 1964

  75. 1965

  76. 1966

  77. 1967

  78. 1968

  79. 1969

  80. 1970

  81. 1973

  82. 1974

  83. 1975

  84. 1976

  85. 1995

  86. 1998

  87. 2003

  88. 2006

  89. 2016