Can i get two paragraphs about anything that happened in wwii

World War II was the greatest conflict in human history in matters of intensity, financial and human resources mobilized, and the number of victims. Throughout the six years of conflict, violence spread across different continents, resulting in the death of approximately 70 million people.  Major highlights of World War II were the construction of concentration camps by Nazi Germany, especially in Poland, which aimed at enslaving and exterminating Jews, Gypsies, Jehovah's Witnesses, homosexuals and so on. In addition, during the Second World War, atomic weapons were used for the first time, launched by the US against the Japanese cities of Hiroshima and Nagasaki.

During World War II, Japan, driven by its xenophobic nationalism and its radical militarism, committed a series of war crimes. One of the places where several people were victims of the brutality committed by the Japanese army was the facilities of Unit 731. This unit was created under the name of "Kwangtung Army Water Supply and Epidemic Protection Unit" and had as its primary function to control of water quality used by the Japanese army based in China.  However, Unit 731 was secretly used by the Japanese Army to promote a series of macabre studies on living human guinea pigs and to promote studies for the development of chemical and biological weapons.  

early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the out of africa migration of homo erectus. this initial migration was followed by other archaic humans including h. heidelbergensis, which lived around 500,000 years ago and was the likely ancestor of both denisovans and neanderthals. early hominids were said to have "crossed land bridges that were eventually covered in water" .

within africa, homo sapiens dispersed around the time of its speciation, roughly 300,000 years ago.the "recent african origin" paradigm suggests that the anatomically modern humans outside of africa descend from a population of homo sapiens migrating from east africa roughly 70,000 years ago and spreading along the southern coast of asia and to oceania before 50,000 years ago. modern humans spread across europe about 40,000 years ago.

the migrating modern human populations are known to have interbred with local varieties of archaic humans, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans.

after the last glacial maximum, north eurasian populations migrated to the americas about 20,000 years ago. northern eurasia was peopled after 12,000 years ago, in the beginning holocene. arctic canada and greenland were reached by the paleo-eskimo expansion around 4,000 years ago. finally, polynesia was peopled after 2,000 years ago, by the austronesian expansion.

our former president bush did 9/11