The National Day Calendar started as a blog written by holiday enthusiast Marlo Anderson. These days the National Day Calendar is the #1 trending topic of all-time on social media. Every day is some sort of holiday, and Marlo joins Bill to talk about how his calendar has grown from just a blog to being used by thousands of media outlets around the world each day.
You can watch the interview below and visit the official website to see what holiday we're celebrating today: nationaldaycalendar.com.