Talk:Rule of marteloio

A fact from Rule of marteloio appeared on Wikipedia's Main Page in the Did you know column on 6 August 2011 (check views). The text of the entry was as follows:

Did you know... that Italian sailors in the Middle Ages used trigonometry and the rule of Marteloio (pictured) to navigate at sea?

A record of the entry may be seen at Wikipedia:Recent additions/2011/August.

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