#e <t>inv<d>1888<n>ballpoint pen<c>U.S.<info>by John Loud
#e <t>inv<d>1899 Mar<n>cross-Channel radio<c>English Channel<au>Marconi<info>The first wireless telegraph message across the English Channel was sent by Marconi in March 1899.
// 20th century
#e <t>inv<d>1901 Dec 12<n>transatlantic radio<c>North Atlantic<au>Marconi<info>Marconi made the first transatlantic radio communication on December 12, 1901, from Cornwall, England, to Saint John's, Newfoundland, where Marconi had set up receiving equipment.
#e <t>inv<d>1903<n>Wright brothers' first flight<c>Kitty Hawk
#e <t>inv<d>1908<n>Model-T<au>Henry Ford<c>U.S.
#e <t>constr<n>Mount Wilson telescope<c>Mount Wilson<d>1917
#e <t>inv<d>1929<n>van de Graaff generator<c>U.S.
#e <t>inv<n>cyclotron<d>1934<info>by E. O. Lawrence and M. S. Livingston
#e <t>collapse<n>Tacoma Narrows Bridge collapses<d>1940 Nov 7<c>Tacoma Narrows
#e <t>constr<n>Grand Coulee Dam becomes operational<c>Grand Coulee Dam<d>1941 Mar 22
#e <t>flight<d>1970 Nov 4<n>Concorde exceeds Mach 2<c>Europe