Nearly $152,000 has been donated online to help Billy Ray Harris, a homeless man in Kansas City who returned an engagement ring to the woman who accidentally left it in a cup he uses to collect change.
In California in the early 1980s, a cracked tooth sent Mike Williams to the dentist's office.
When Williams asked to see the tooth, the dentist said he had a mirror but that there was no camera or anything to show people the insides of their mouths. So, Williams invented one: the first intraoral camera.
His invention was a big success, and it led to other medical technology ventures that made him millions of dollars. Williams' career as an inventor and entrepreneur took off, but it wouldn't last.
Jeffrey Hillman's bare feet on a frigid night in New York City last month inspired a police officer to buy the seemingly homeless man a pair of warm boots — a moment captured in a heartwarming photo that went viral.
Robert Griffo was living the high life at an investment firm on Wall Street when the stock market crashed 25 years ago on Black Monday. Along with the Dow Jones industrial average, Griffo's life tumbled.
Griffo tells StoryCorps he worked with the investment company for 11 years.
"I was making a lot of money," he says. "I used to walk over homeless people at Grand Central Station when they were begging for money, and I'd say, 'You need to get a job.' But I lost myself on Wall Street."
When the market crashed on Oct. 19, 1987, Griffo thought he would be let go.
When Tierra Jackson was in high school, she was struggling. She kept getting yelled at for being late to school.
What most of her teachers and administrators didn't know was the reason for her tardiness: Jackson was homeless. Her mother was in and out of prison. She and her brother were living with her aunt and cousins. All seven of them shared a single room in one of Chicago's homeless shelters, a long bus ride from her school.