Three ways in which ethnic diversity in the west might have caused conflict

Political factors. Ethnic conflict is particularly likely in states where ethnic groups lack sufficient representation in public and political institutions. ... The existence, or lack of existence, of stable domestic intergroup relations can also have a bearing on whether violent ethnic conflict is likely to occur.

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.