Martin Luther King, Jr. (January 15, 1929-April 4, 1968) was one of the most prominent leaders of America's Civil Rights ...

Martin Luther King Jr., a reverend and civil-rights activist, was assassinated at 39. However, he inspired several movements ...

Without our immune system, we wouldn't last very long: this complex network of organs and cells fights off pathogens and ...

Learning new things is important if we want to live a long and fulfilling life. Acquiring new skills and performing ...