Federico Guillermo Enrique Alejandro de Humboldt, known as Alexander von Humboldt, was a German who has left his mark on several aspects of modern science to this day. Next, I will briefly explain his biography before arriving at the destination previously invaded by Spain: Mexico, which was then called "New Spain." He has quite extensive training with private teachers, such as philosophy, physics, engraving, drawing, politics, physical and natural sciences, biology, modern history, mathematics, geography, geology and also several languages; provides what we would currently call the beginning of modern science. It explores distant lands, unknown and strange to Europeans: the American continent, focusing on Mexico; There he analyzes and studies nature in detail, making maps, drawings, writings and gathering various things for later analysis. They traveled by mule or on foot, collecting and studying plants, animals and rocks, carrying with them heavy and delicate measuring instruments, which were more than 25 and the most modern of their time, and they even spent their own fortune to purchase these instruments. in metal and wood, including: telescope, microscope, sexant, quadrants, barometer, theodolite and hygrometer. In America, where he observed the indigenous population with eyes full of culture, he became interested in humanity. New Spain faced several unjust social, political and social conditions that the inhabitants lived in which Humboldt decided to oppose and bring about a change, because he had no prejudice. They accuse him because he could be a possible spy for the United States, since he gives them maps of the region of Mexico, which he later conquers...... middle of paper ..... .xexplore the lands and talk about nature with human beings have earned him the fame that we currently recognize. He was a man without prejudice, who tried to ensure that all human beings were taken into account equally, without classifications, especially the indigenous people who suffered various injustices because the Spaniards demeaned them socially. Also in New Spain he made several relevant investigations and discoveries about the nature and history before the Spanish invasion because it was not the same place and he had to remove the rubble of some important figures such as Coatlicue and the Aztec calendar. He has worked in science for over 70 years, putting his personal fortune to pay for his own travel, publications and helping low-income youth with their studies since he did not receive financial support from the government..