Found occurrences of 1668 AD in 13 documents in the collection. Click on a column heading to sort by it, or to toggle ascending or descending sorting for the current column:

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Document Max. Freq. ⇩ Min. Freq. ⇩
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 61 61 Browse all entities in this document
Harper's Encyclopedia of United States History (ed. Benson Lossing) 24 24 Browse all entities in this document
Knight's Mechanical Encyclopedia (ed. Knight) 8 8 Browse all entities in this document
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 2, 17th edition. 7 7 Browse all entities in this document
HISTORY OF THE TOWN OF MEDFORD, Middlesex County, Massachusetts, FROM ITS FIRST SETTLEMENT, IN 1630, TO THE PRESENT TIME, 1855. (ed. Charles Brooks) 3 3 Browse all entities in this document
Cambridge sketches (ed. Estelle M. H. Merrill) 3 3 Browse all entities in this document
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 3, 15th edition. 1 1 Browse all entities in this document
Historic leaves, volume 7, April, 1908 - January, 1909 1 1 Browse all entities in this document
Historic leaves, volume 3, April, 1904 - January, 1905 1 1 Browse all entities in this document
Southern Historical Society Papers, Volume 19. (ed. Reverend J. William Jones) 1 1 Browse all entities in this document
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 1 1 Browse all entities in this document
William Schouler, A history of Massachusetts in the Civil War: Volume 1 1 1 Browse all entities in this document
The Daily Dispatch: October 7, 1861., [Electronic resource] 1 1 Browse all entities in this document