Buddhist crisis: Amid worsening relations, outspoken South Vietnamese First Lady Madame Ngo Dinh Nhu arrives in the US for a speaking tour, continuing a flurry of attacks on the Kennedy administration.

The Buddhist crisis was a period of political and religious tension in South Vietnam between May and November 1963, characterized by a series of repressive acts by the South Vietnamese government and a campaign of civil resistance, led mainly by Buddhist activists.