Question

How spain and porteguese could capture north america with help of small pox how disease and helping in makeing of global world

Answer 1

The history of smallpox extends into pre-history, the disease likely emerged in human populations about 10,000 BC.[1] The earliest credible evidence of smallpox is found in the Egyptian mummies of people who died some 3000 years ago.[2] Smallpox has had a major impact on world history, not least because indigenous populations of regions where smallpox was non-native, such as the Americas and Australia, were rapidly decimated and weakened by smallpox (along with other introduced diseases) during periods of initial foreign contact, which helped pave the way for conquest and colonization. During the 18th century the disease killed an estimated 400,000 Europeans each year, including five reigning monarchs, and was responsible for a third of all blindness.[3] Between 20 and 60% of all those infected—and over 80% of infected children—died from the disease.[4]

During the 20th century, it is estimated that smallpox was responsible for 300–500 million deaths.[5][6][7] In the early 1950s an estimated 50 million cases of smallpox occurred in the world each year.[8] As recently as 1967, the World Health Organization estimated that 15 million people contracted the disease and that two million died in that year.[8] After successful vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in December 1979.[8] Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared eradicated in 2011.[9][10][11]

Answer 2

Answer:

Europeans like Spaniards, Portuguese flowed into America after its discovery. 

The germs of smallpox were carried on their person.

The global transfer of disease in the pre-modern world helped in the colonization of the Americas because the native American Indians were not immune to the diseases that the settlers and colonizers brought with them.

The Europeans were more or less immune to smallpox, but the native Americans, having been cut off from the rest of the world for millions of years, had no defence against it. These germs killed and wiped out whole communities, paving the way for foreign domination.

Weapons and soldiers could be destroyed or captured, but diseases could not be fought against. But not diseases such as smallpox to which the conquerors were mostly immune.