History

Read Martin Luther King Jr.'s 'I Have a Dream' speech in its entirety
Americans across the U.S. are celebrating King's legacy this weekend. One way to reflect on his life and message is by revisiting his celebrated 1963 speech delivered at the Lincoln Memorial.
The world's population was up 75 million this year, will stand at 8 billion on Jan. 1
The growth rate for the U.S. in the past year was 0.53 percent, about half the worldwide rate. The U.S. added 1.7 million people and will have a population on New Year's Day of 335.8 million people.
As the Endangered Species Act turns 50, those who first enforced it reflect on its mixed legacy
On Dec. 28, 1973, President Richard Nixon signed the Endangered Species Act. The powerful law charged the federal government with saving every endangered plant and animal in America. It enjoyed nearly unanimous bipartisan support but soon became controversial. 
A father and daughter went fishing in Wisconsin. What they found was a 152-year-old shipwreck
Tim Wollak and his 5-year-old daughter Henley first thought they came across an octopus. But their discovery is presumed to be a shipwreck connected to the deadliest wildfire in American history.