What are the differences and similarities between the headlines? Headline from the Past
Silk Road Binds Chinese, European Trade

Headline from Modern Time
European Union Lowers Trade, Travel, Cultural Boundaries Between Member Nations

d) a constitutional amendment

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.