Want to know whether Anne Boleyn knew Utopia author Thomas More? There was a time when that answer would have involved painstakingly combing through historical archives hunting for arcane clues. But now you can search a massive online digitized database and get the answer in a fraction of the time.
Nautical trade routes stretch like so many lengths of string in this arresting visualization of intercontinental commerce in the 1800s. The map that emerges highlights not only several continents and their busiest ports, but the various trade winds that cycle through the lower reaches of Earth's atmosphere.