The 1874 Atlantic hurricane season featured the first hurricane to be recorded on a weather map by the United States Signal Service. It was a relatively inactive season, in which seven tropical cyclones developed. Four storms intensified into hurricanes, but none attained major hurricane status. However, in the absence of modern satellite and other remote-sensing technologies, only storms that affected populated land areas or encountered ships at sea were recorded, so the actual total could be higher. An undercount bias of zero to six tropical cyclones per year between 1851 and 1885 and zero to four per year between 1886 and 1910 has been estimated. 7 storms, 4 hurricanes, 0 major hurricanes (Category 3+). Strongest: an unnamed storm (105 mph). Accumulated cyclone energy ≈ 47. Wiki link