 Annual conventions such as Comic Con International, Wondercon, Dragon Con and New York Comic Con are some of the more well known and highly attended events that cater to overlapping fandoms.Fans of the literary detective Sherlock Holmes are widely considered to have comprised the first modern fandom, holding public demonstrations of mourning after Holmes was "killed off" in 1893, and creating some of the first fan fiction as early as about 1897 to 1902.Outside the scope of media, railway enthusiasts are another early fandom with its roots in the late 19th century that began to gain in popularity and increasingly organize in the first decades of the early 20th century.