1844 - Iron ore discovered in Minnesota's Mesabi Mountains
1900 - France proclaims a protectorate over Chad
1977 – Voyager 1 (US) launched toward fly-by of Jupiter, Saturn.
1980 - World's longest road tunnel, St Gotthard in Swiss Alps, opens
1986 - NASA awards study contracts to 5 aerospace firms
1986 - NASA launches DOD-1
