Question: when did the new russian calendar go into effect
Answer: Country Start numbered year on 1 January Adoption of Gregorian calendar Denmark Gradual change from 13th to 16th centuries 1700 Venice 1522 1582 Holy Roman Empire ( Catholic states ) 1544 1583 Spain , Poland , Portugal 1556 1582 Holy Roman Empire ( Protestant states ) 1559 1700 Sweden 1559 1753 France 1564 1582 Southern Netherlands 1576 1582 Lorraine 1579 1682 Dutch Republic 1583 1582 Scotland 1600 1752 Russia 1700 1918 Tuscany 1721 1750 Great Britain and the British Empire except Scotland 1752 1752