Difference between revisions of "September 20"
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| − | [[16th | + | [[Early History#16th Century|1519]] – Ferdinand Magellan sets sail with about 270 men, which ultimately culminates into the first circumnavigation of [[Earth|the world]]. <br> |
[[1911]] – Navigational instruments were first requested for use on naval aircraft.<br> | [[1911]] – Navigational instruments were first requested for use on naval aircraft.<br> | ||
