03/04/13 - Monday鈥檚 is with Harvard history professor , author of . Humans have circled the globe for some 500 years. Soviet cosmonaut Yuri Gargarin was the first to achieve the feat by spacecraft. There are fascinating tales in that history: encircling the planet was once considered a conquest. Now, we can book air tickets by smart-phone to go around the world. That鈥檚 Topical Currents . . . Monday at 1pm on 91.3 SA国际传谋-HD1.
500-year history of circumnavigation in 3 minutes:
http://youtu.be/uiWvAARhmBY
