1905 was a common year starting on Sunday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1905th year of the Common Era (CE) and Anno Domini (AD) designations, the 905th year of the 2nd millennium, the 5th year of the 20th century, and the 6th year of the 1900s decade. As of the start of 1905, the Gregorian calendar was 13 …

The Russian Revolution of 1905, also known as the First Russian Revolution, occurred on 22 January 1905, and was a wave of mass political and social unrest that spread through vast areas of the Russian Empire.The mass unrest was directed against the Tsar alongside the nobility and ruling class. It included worker strikes, peasant unrest, and military mutinies.