1901 (Year)

1901 AD (Anno Domini) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1901st year of the Common Era (CE) and Anno Domini (AD) designations, the 901st year of the 2nd millennium, the 1st year of the 20th century, and the 2nd year of the 1900s decade. As of the start of 1901, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.

The events portrayed in the Lonesome Crowded West campaign take place mostly in 1901, though significant backstory events take place in both 1885 and 1891, and the campaign may run into 1902 and potentially beyond.