The beginning of World Space Week (International)

World Space Week (WSW) is an annual holiday observed from October 4 to 10 in over 95 nations throughout the world. World Space Week is officially defined as "an international celebration of science and technology, and their contribution to the betterment of the human condition". World Space week is organized every year by coordination of the World Space Week Association (WSWA) and the United Nations (UN).

Lists of holidays by various categorizations.