▁town ▁four ▁days ▁later . ▁ 1 9 6 3 ▁– ▁Joe ▁Walker ▁f lies ▁a ▁North ▁American ▁X - 1 5 ▁to ▁a ▁record ▁alt itude ▁of ▁ 1 0 6 , 0 1 0 ▁meters ▁( 3 4 7 , 8 0 0 ▁feet ) ▁on ▁X - 1 5 ▁Fl ight ▁ 9 0 . ▁Ex ceed ing ▁an ▁alt itude ▁of ▁ 1 0 0   km , ▁this ▁flight ▁qual ifies ▁as ▁a ▁human ▁space fl ight ▁under ▁international ▁convention . ▁ 1 9 6 4 ▁– ▁Vietnam ▁War : ▁At ▁a ▁r ally ▁in ▁Sa ig on , ▁South ▁Vietnam ese ▁Prime ▁Minister ▁N gu y ễ n ▁Kh án h ▁calls ▁for ▁expand ing ▁the ▁war ▁into ▁North ▁Vietnam . ▁ 1 9 6 9 ▁– ▁Ch appa qu idd ick ▁incident : ▁U . S . ▁Senator ▁Ted ▁Kennedy ▁crashes ▁his ▁car ▁into ▁a ▁tid al ▁p ond ▁at ▁Ch appa qu idd ick ▁Island , ▁Massachusetts , ▁killing ▁his ▁passenger ▁Mary ▁Jo ▁K ope ch ne . ▁ 1 9 7 2 ▁– ▁D hof ar ▁Reb ell ion : ▁British ▁S AS ▁units ▁help ▁the ▁O man i ▁government ▁against ▁Popular ▁Front ▁for ▁the ▁Liber ation ▁of ▁O man ▁reb els ▁in ▁the ▁Battle ▁of ▁Mir bat . ▁ 1 9 7 6 ▁– ▁S agar math a ▁National ▁Park ▁in ▁Nep al ▁is ▁created . ▁ 1 9 7 7 ▁– ▁The ▁world ' s ▁first ▁Global ▁Position ing ▁System ▁( G