 Mindelo grew as a result of ship refueling, two submarine telegraph cables were linked in 1874 to Pernambuco, Brazil, Cory Brothers later opened, another connected to Cameroon via Bathurst (now Banjul), the Gambia in 1885, Mindelo became the most used Transatlantic telegraph station for some time in 1912.A total of 669 ships were refueled each year at the port, it reached to 1,927 ships a decade later and then when gasoline fuel was started to be used especially boats, it never rivaled with the ports of Las Palmas of the Grand Canary or nearby Dakar in Senegal.The usage of coal dropped which lead to a coal strike in 1912 due to insufficient work, when the Great Depression began in 1930, ship activity ended.