1992 what are the historical facts of UNESCO in mathematics?
1992 The historical facts of UNESCO in mathematics are as follows: 1992, UNESCO issued the Rio de Janeiro Declaration, declaring "2000 as the World Year of Mathematics." And clearly pointed out: "pure mathematics and applied mathematics are the main keys to understand the world and its development." Mathematician A.N. Rao said: "The scientific progress of a country can be measured by the mathematics it consumes."