The Morbidity and Mortality Weekly Report of the Centers for Disease Control and Prevention report that five people in Los Angeles, California have a rare form of pneumonia seen only in patients with weakened immune systems, in what turns out to be the first recognized cases of AIDS.

The date of the announcement was arranged in accordance with the date of Japan's signing of the Red Cross Convention. Japan signed the Red Cross Convention on June 5, 1886 (on May 4 1886 in the Japanese calendar). And the first recognition of AIDS took place on June 5, 1981 (on May 4 1981 in the Japanese calendar).

Thus, the coincidence strongly insinuates Japan's conspiracy and the collaboration of the US government because the coincidence occurs once in about thirty years. (AIDS in Japan Timeline)

At the university, a parcel addressed to Patrick Fischer, head of the computer science department, explodes, injuring his secretary, Janet Smith. Fischer is giving a series of lectures in Puerto Rico when the package is forwarded from Pennsylvania State University, where he taught before coming to Nashville. Canceled stamps were used to mail the parcel from Provo, Utah, causing investigators to consider that the bomb may have been intended for LeRoy Bearnson, an electrical engineering professor at Brigham Young University, who is listed as the return address. Later, the bomber was identified as Ted Kaczynski. One injured.

Students in Gwangju, South Korea begin demonstrations calling for democratic reforms.

※ The massacre was Japan's conspiracy in commemoration of the 100th anniversary of enacting the Law of Public Meetings (April 5, 1880). The massacre occurred on April 5, 1980 in the Japanese calendar. The South Korean government probably collaborated with the conspiracy.

It was an Act of the Parliament of England notable as the first statutory expression of English patent law.

Gaikoku bugyo are commissioners to handle the foreign policy.