Here's a look at the week ahead on our "Sunday Morning" Calendar:
Monday is Freedom of Information Day, a celebration of transparency in government that coincides with the birthday of President James Madison, the father of the Constitution.
Tuesday is Saint Patrick's Day, of course, as well as Day One of a four-day visit to the United States by Prince Charles and his wife, Camilla, the Duchess of Cornwall.
- st-patricks-day.com - Parades and event listings around the world
- CBS News complete coverage: The royals
Wednesday marks the 50th anniversary of the first spacewalk by Soviet cosmonaut Alexei Leonov. American astronaut Edward White made the first U.S. spacewalk two and a half months later.
Thursday is Companies That Care Day, an annual events aimed at supporting the well-being of employee and communities, with a focus this year on childhood literacy.
- CAREDAYS Annual National Initiative
- Center for Companies That Care
- Follow @CosThatCare on Twitter and Facebook
Friday is the first day of Spring . . . and it's Day One for the National Cherry Blossom Festival in Washington, D.C.
- National Cherry Blossom Festival, Washington, D.C. (March 20-April 12) | Schedule of Events
- Follow @CherryBlossFest on Twitter and Facebook
- Gallery: Washington D.C. pretty in pink (2014)
- Gallery: Cherry blossom season in Japan 2014
- Video: Cherry Blossom Festival Parade led by Norah O'Donnell ("CBS This Morning," 04/14/14)
And Saturday sees the ninth anniversary of the very first tweet, by Twitter founder Jack Dorsey. Nothing profound, just:
Today, Twitter reports more than 500 million tweets a DAY.