The Invicta Ground was a football stadium in Plumstead, south-east London, that was the home of Royal Arsenal (today known simply as Arsenal) between 1890 and 1893.Named after Invicta, the motto of the county of Kent (which was the county Plumstead was located in prior to 1889), the ground was Arsenal's first proper stadium, being equipped with a stand, a row of terracing and changing rooms.