Historic oil on canvas, contemporary inserts, lacquered wood.

Percentage of years in which the ‘Great Powers’ fought each other (1500 - 2000).

1500 - 75%
1525 - 90%
1550 - 100%
1575 - 90%
1600 - 75%
1625 - 90%
1659 - 100%
1675 - 85%
1700 - 80%
1725 - 70%
1750 - 40%
1775 - 50%
1800 - 60%
1825 - 0%
1850 - 25%
1875 - 0%
1900 - 20%
1925 - 20%
1950 - 10%
1975 - 0%
2000 - 0%

(Sources: Source: Steven Pinker, The Better Angels of Our Nature New York, Viking: 2011)