An experimenter flashes the word heron across the visual field of a man whose corpus callosum has been severed. her is transmitted to his right hemisphere and on to his left hemisphere. when asked to indicate what he saw, the man says he saw but points to .

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.