Original sentence: Human rights in Vietnam.In the Overseas Vietnamese community, the day is remembered as the "Fall of Saigon", "Black April (Tháng Tư Đen)", National Day of Shame (Ngày Quốc Nhục) or National Day of Resentment (Ngày Quốc Hận).It was the start of the transition period toward reunification, which occurred July 2, 1976 when the Provisional Revolutionary Government of the Republic of South Vietnam merged under communist North Vietnam and the to form the modern-day Socialist Republic of Vietnam
Edited sentence: In the Overseas Vietnamese community, the day is remembered as the Fall of Saigon, Black April (Tháng Tư Đen), National Day of Shame (Ngày Quốc Nhục) or National Day of Resentment (Ngày Quốc Hận).It was the start of the transition period toward reunification, which occurred July 2, 1976 when the Provisional Revolutionary Government of the Republic of South Vietnam and North Vietnam merged to form the modern-day Socialist Republic of Vietnam