Taking Advantage of Leap Year, No. 62 from the series "Young Ideas" by Anthony and Company (Publisher) https://www.rawpixel.com/image/8965048/photo-image-person-book-living-roomFree Image from public domain licenseDecember 2, 2014NASA's Journey to Marshttp://mars.jpl.nasa.gov/msl/multimedia/images/?ImageID=6829NASA is developing the… https://www.rawpixel.com/image/9975908/photo-image-astronaut-moon-spaceFree Image from public domain licenseTaking Advantage of Leap Year. by Edward and Henry T Anthony and Co https://www.rawpixel.com/image/14287774/taking-advantage-leap-year-edward-and-henry-anthony-andFree Image from public domain license