In the year of Queen Victoria's accession to the throne, Captain Thomas Sumner, an American seaman, stumbled across the principle of the position line, on which modern practice is based.
Ngonyaka wokubekwa kokumkanikazi uVictoria, umphathi mabutho,uThomas Summer waseMelika, wabhaqa ubume, obusekelwe kuyo kuqhutyo lwangoku.