What should children learn in school? It's a question that's stirred debate for decades, and in 1974 it led to violent protests in West Virginia. Schools were hit by dynamite, buses were riddled with bullets, and coal mines were shut down. The fight was over a new set of textbooks.
President Barack Obama wants to create jobs by building infrastructure. So did another president. Franklin Delano Roosevelt tried to put people to work by building roads, bridges, dams, sewers, schools, hospitals and even ski jumps. The structures that New Deal agencies built transformed America.
The 1968 presidential election was a watershed in American politics. After dominating the political landscape for more than a generation, the Democratic Party crumbled. Richard M. Nixon was elected president and a new era of Republican conservatism was born.
Martin Luther King Jr. was assassinated on April 4, 1968. Four decades later, King remains one of the most vivid symbols of hope for racial unity in America. But that's not the way he was viewed in the last year of his life.