Cross-Staff - Ages of Exploration

Christopher Columbus - Facts, Voyage & Discovery

early exploration of the Americas - Students, Britannica Kids

7 Ships and Navigational Tools Used in the Age of Exploration

A Saxon sport crossbow with gaffle, circa 1830, Heavy iron prod with a later hemp string and original decorative woollen tassels. The inside of the bow embellished with floral ornaments. The original

early exploration of the Americas - Students, Britannica Kids

READ: Technology in the Age of Exploration (article)

History of navigation - Wikipedia

READ: Technology in the Age of Exploration (article)

Navigation - Cross Staff

Backstaff (Tree of Life and Boxwood) by English School

Mariners' Museum: The Ages of Exploration: Ancient Website for 4th - 8th Grade