This Day in History
Building of Castillo de Marcos

On a day like today in 1670…

Built from the bounty of the sea, Castillo de San Marcos rises in the 1670’s. Spanish masons shape blocks of coquina, sea shells cemented by their own lime, and set them with mortar made from oyster shells. Indians raft blocks from quarries on Anastasia Island. The resilient walls frustrated attackers; the rock “will not splinter,” complained an Englishman, “but will give way to cannon ball as though you would stick a knife into cheese….”

April's Archived Features:

Wednesday April 1, 2020
Thursday April 2, 2020
Friday April 3, 2020
Saturday April 4, 2020
Sunday April 5, 2020



All illustrations by Mort Künstler. Text by Michael Aubrecht, Dee Brown, Henry Steele Commager, Rod Gragg, Mort Künstler, Edward Lengel, James McPherson, and James I. Robertson, Jr. - Copyright © 2001-2019. All Rights Reserved. No part of the contents of this web site may be reproduced or utilized in any form by any means without written consent of the artist.