Examine this timeline: september 1, 1939 — germany invades poland. september 27, 1940 — germany, japan, and the soviet union sign a pact stating they will not attack each other and will provide military assistance if attacked by a nation not already involved in the war. december 7, 1941 — japanese bombers destroy large portions of the u. s. navy fleet at pearl harbor. december 8, 1941 — the united states declares war on japan. december 11, 1941 — germany declares war on the united states. december 11, 1941 — the united states declares war on germany. based on the information in the timeline, which causal explanation for u. s. involvement in world war ii is most likely accurate? a. the united states became involved in world war ii to protect european allies attacked by germany. b. the united states entered world war ii because japan attacked its navy. c. the united states entered world war ii because both japan and germany declared war on it. d. the united states became involved in world war ii to weaken the alliance of germany, japan, and the soviet union.

the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.