Like a Sudoku puzzle with letters, each Unolingo puzzle is a 10x10 crossword without clues
A note to our players: As of December 31, 2022, Smithsonianmag.com ceased hosting games from UClick Universal on our site. We apologize for the inconvenience. To stay connected and get a daily digest of the latest in the world of history, archaeology and science, sign up for our newsletter.
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/f1/b2/f1b29e84-72d0-40a5-b544-a9e52911d69a/img_7837.jpg)
Staffers at the Dorchester County Historical Society in Maryland were baffled by the unusual machine, so they asked the public for help in determining its purpose
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/e0/51/e0512c60-61f0-4d55-9fbe-fe5eaea30cb1/titanic.jpg)
A handwritten note by Richard William Smith, a British businessman who perished in the disaster, is heading to the auction block, where it could sell for up to $12,600
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/4c/7e/4c7e1851-2631-4f1a-a857-5e7d2a14fa9d/16.jpeg)
Researchers have excavated King Arthur's Hall, a rectangular enclosure in southwest England, and determined that it dates to at least 3000 B.C.E.
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/56/43/56430948-297c-4e70-881b-b7e376035e37/465182135_542934041779174_9202906741891227864_n.jpeg)
Sławomir and Szymon Milewski were searching for an ancient road when they stumbled upon the cache of coins, which is worth more than $120,000
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/aa/39/aa39d1e4-7433-4146-8d28-ece52e16d87e/241010-f-fa999-0011.jpeg)
Called aerobraking, the technique allows the highly classified craft to change orbit without using propellant—and some are wondering why the agency has let us in on this news
