Crucifixion in the arts on a mathematical representation of the fourth dimension that is both unseeable and spiritual; Gary Bolyer assesses it as "one of the most beautiful works of the modern era." The sculpture "Construction (Crucifixion): Homage to Mondrian", by Barbara Hepworth, stands on the grounds of Winchester Cathedral. Porfirio DiDonna's abstract "Crucifixion" is one of a number of religious works he painted in the 1960s, "blending the artist's devotion to the liturgy and his commitment to painting". The "Welsh Window", given to the 16th Street Baptist Church after it was bombed by four Ku Klux Klansmen in 1963, is a work of
United Nations Operation in the Congo Lumumba wrote to UN Secretary General Dag Hammarskjöld, that from the text of United Nations Security Council Resolution 143 "it is clear that, contrary to your personal interpretation, the UN force may be used to subdue the rebel government of Katanga." Secretary General Hammarskjöld refused. To Hammarskjöld, the secession of Katanga was an internal Congolese matter and the UN was forbidden to intervene by Article 2 of the United Nations Charter. Disagreements over what the UN force could and could not do continued throughout its deployment. In response, Lumumba accused the UN of siding with Tshombe and foreign mining companies.