The North American X-15 was a rocket-powered, manned, experimental aircraft that flew at a speed of 7,274 kilometers per hour in 1967, reaching the limits of space at an altitude of 108,000 m. A total of 199 flights were made by 12 different pilots.
The North American X-15 was a rocket-powered, manned, experimental aircraft that flew at a speed of 7,274 kilometers per hour in 1967, reaching the limits of space at an altitude of 108,000 m. A total of 199 flights were made by 12 different pilots.
The Treaty of Versailles , signed on June 28, 1919 in the Hall of Mirrors of the Palace of Versailles between the Allies and Germany, ended the First World War. Because it settles a global, unprecedented and deadly conflict between several dozen countries on several continents, it is an essential mo
It is well known how diseases transmitted unintentionally by the Spanish (and their African slaves) who moved to the Indies from the end of the 15th century had a devastating effect on the native American populations. Although with different opinions, not only on the scope of the various conditions
In Luoyang (Henan, China), view of the excavations of the city, which was the capital of the Eastern Han and where the tomb of Emperor Liu Zhi is located • IMAGINECHINA VIA AFP An unsympathetic character emerges from oblivion in China with the discovery of his tomb. This is Liu Zhi, eleventh emp