Nh?ng m?i quan h??c?a Tri?u Tiên v?i nhi?u ??i tác châu Phi ?ã suy y?u trong th?p k??qua k??t??khi ph?i ??i m?t v?i các l?nh tr?ng ph?t c?a Liên H?p Qu?c.[a hundred and ten] Many European attempts to establish trading posts in Vietnam unsuccessful, but missionaries had been allowed to operate for some time right until the mandarins started co