Original sentence: In January 1876, following the Meiji Restoration, Japan employed gunboat diplomacy to pressure Korea, under the Joseon Dynasty, to sign the Treaty of Ganghwa, which granted extraterritorial rights to Japanese citizens and opened three Korean ports to Japanese trade.It is estimated that as many as 300,000 people, including civilians, may have been killed, although the actual numbers are uncertain and the government of the People's Republic of China has never undertaken a full accounting of the massacres
Edited sentence: In January 1876, following the Meiji Restoration, Japan employed gunboat diplomacy to pressure Korea, under the Joseon Dynasty, to sign the Treaty of Ganghwa, which granted extraterritorial rights to Japanese citizens and opened three Korean ports(Wonsan port, Incheon port, Busan port) to Japanese trade.It is estimated that as many as 300,000 people, mostly civilians, were raped, tortured, mutilated and afterwards killed, although the actual numbers are uncertain and the government of the People's Republic of China has never undertaken a full accounting of the massacres