Slash-and-burn is a method of clearing land for agriculture by cutting down trees and burning them. The ashes from the burned trees fertilize the soil, making it more productive for farming. This method was used by early humans in the Stone Age and is still used in some parts of the world today.
In 1939-1940, the volume of production of the Soviet war industry had increased. In 1940, for example, 8,331 combat aircraft were manufactured, but these were mostly aircraft of an outdated type. However, it was during this period that the Lavochkine, Yakovlev, Mikoyan-Gurevitch fighters, the famous
The American Constitution it was enacted in 1787 and ratified two years later by the 13 American states. In 1791, the American Magna Carta would receive the addition of the Bill of Rights (Bill of Rights ). Origin The Foundation of the American State, by Henry Hintermeister, 1925. After the decl
Antonio de Oliveira Salazar (1889-1970) was a lawyer, university professor and president of the Council of Ministers of Portugal from 1933 to 1968. Salazar was responsible for the consolidation of the Estado Novo and for the ideological implantation of the regime, Salazarism. Biography Salazar was
Punic Wars were armed conflicts between Rome and Carthage, between 264 and 146 BC, being won by the Romans, who consolidated their power in the Mediterranean Sea. The Punic Wars were armed conflicts between Rome and Carthage , between 264 and 146 BC. Carthage, located in North Africa, had the contr