(Fill in the blank) had a tremendous impact on Marie Colvin.

This may refer to two events in her life, one more personal and other related to her work.

In 2001 she lost an eye when covering the Sri Lankan Civil War. She was attacked by a rocket-propelled grenade while crossing from a Tamil Tigers-controlled area to a Government-controlled area; Then she walked more than 30 miles through the jungle and managed to survive and report the things that she witnessed while she was there. This event left post-traumatic stress disorder, and she required hospitalization following her injuries.

The other possible event is the death of her husband Patrick Bishop in 2002.

The first being related to her more known story is most likely the correct answer to the question.

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.