The map, produced by Radicalcartography.net shows the amount of land given over to agriculture around the world over the three centuries leading up to the year 2000.
The map shows that in 1700, outside of Europe and Asia there was a very small proportion of land being farmed. The 18th century saw an increase in arable land for use and the beginnings of a vast improvement in agricultural yields. New farming methods, such as four-field crop rotation, the increased use of fertilizer and increasing mechanization, opened up additional swaths of land for agriculture.
Technology developed in the First and Second Industrial Revolutions saw farming rapidly expand into previously untapped areas, such as the American Great Plains in the late 19th century and Argentina in the early 20th century.
Expansion and intensification of existing farming continued into recent decades, with Brazil and central India becoming more intensely farmed since the late 20th century.
Historian and cartographer Bill Rankin argues that existing arable land has become "more and more agricultural". It is estimated that the productivity of wheat in England went up from about 19 bushels per acre in 1720 to around 30 bushels by 1840.
In recent years intensification has increased and land expansion has slowed in the developed world. This is largely down to the increased use of fertilizer, which has improved production yields.
Via Neelima Sinha, Dr. Stefan Gruenwald