The Mariners' Museum - Monitor: History and Legacy
The Mariners' Museum Defending the Seas

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Monitor - History and Legacy

Chronology of the USS Monitor
From Inception to Sinking

1854

September
    Swedish inventor John Ericsson submits plans to French Emperor Napoleon III for an "impregnable battery" that includes a revolving cupola.

1861

August 3
    The United States Navy Department advertises for proposals for ironclad warships.

August 29
    In a letter to Abraham Lincoln, John Ericsson offers to construct a "vessel for the destruction of the rebel fleet at Norfolk."

September 11
    Cornelius Bushnell presents a pasteboard model of Ericsson's "battery" to the navy's Ironclad Board and President Lincoln. After reviewing the model, the Ironclad Board invites Ericsson to come to Washington to answer additional questions about his design.

September 14
    After meeting with the Board, Ericsson is instructed by Secretary of the Navy Gideon Welles to "go ahead at once!" Ericsson has one hundred days to complete the vessel.

September 21
    Ericsson is officially notified that his plan for an ironclad has been accepted.

September 27
    Ericsson and his associates C.S. Bushnell, John Griswold, and John Winslow sign a formal contract stipulating that all four share equally in the profits or losses of the project. The keel plates for the battery begin being rolled at Continental Iron Works even though the government contract has not yet been drawn up.

October
    Ericsson begins seeking qualified foundries and iron works to manufacture materials needed to construct his battery.

October 4
    Ericsson and his "Battery Associates" sign a contract with the United States government for the construction of the battery for the sum of $275,000. The money is to be paid in five installments of $50,000 and one of $25,000. The Navy Department stipulates that 25 percent of each payment will be held back to ensure the timely completion of the vessel.

October 25
    Ericsson signs a contract with shipbuilder Thomas Fitch Rowland of Continental Iron Works. Rowland agrees to build Ericsson's iron hull for 7 _ cents per pound. The plates previously rolled for the keel are laid at Continental Iron Works.

November
    The primary work for iron plate, castings, fittings, etc., is contracted out to three New York mills. Holdane & Co. contracts for 125 tons of plate, and Albany Ironworks and Rensselaer Ironworks manufacture hundreds of additional tons of plate and castings. H. Abbott & Sons of Baltimore rolls the 1-inch-thick iron plates for the turret to be shipped to Novelty Ironworks in New York for assembly into Ericsson's "shotproof" tower. Delmater Ironworks and the Clute Brothers Foundry cast and assemble most of the components of the ship's machinery. Throughout the month, work on the iron battery proceeds at a "feverish pace." Materials from the foundries are assembled as soon as they arrive at Continental Iron Works. A ship-house 180 feet long is constructed over the ways to allow work to continue in bad weather and throughout the night.

November 16
    Most of the iron frames of the hull are in place and deck beams are being installed.

December 5
    Ericsson receives a letter from Commodore Joseph Smith informing him that he has been made aware of serious delays in material production. "I beg of you to push up the work. I shall demand heavy forfeiture for delay over the stipulated time of completion. You have only thirty-nine days left."

December 17
    The boilers and auxiliary machinery arrive at Continental Iron Works.

December 30
    Boiler fires are lit and the steam machinery tested.

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