1.c When did it take place?

Move the Top Button to set the earliest-possible year of the crossing and the Bottom Button to set the latest possible year (and make them on the same year if you know the exact year)

Currently selected/Earliest possible Year of Crossing: 1907 in the EraOfTheSteamSailShip(1840-1915). Latest possible Year of Crossing: 1907 in the EraOfTheSteamSailShip(1840-1915).