World Algae Day

National Sausage Pizza Day in USA on October 11;

Arequipe Day in Colombia on October 11;

Dulce de Leche Day in Argentina on October 11;

Thanksgiving in Canada on October 12 (observed on the second week in October);

National Gumbo Day and Cookbook Launch Day in USA on October 12;

National School Lunch Week in US on October 12 (the second full week of October. President John F. Kennedy created National School Lunch Week [NSLW] in 1962 to promote the importance of a healthy school lunch in a child’s life and the impact it has inside and outside of the classroom);

World Bone and Joint Week on October 12;

World Economist Day on October 12 (the day when outstanding representatives of the profession are awarded a prize by decision of the Nobel Committee);

International Day Against DRM on October 12 (IDAD, Inaugurated 2006);

National Peanut Festival, National Pumpkin Festival, Yorkshire Pudding Day and National M&M Day in USA on October 13;

Salvadoran Gastronomy Day on October 13 (Día de la gastronomía salvadoreña. Ñelebrated since 2015);

International Suit Up Day on October 13;

International Skeptics Day on October 13;

World Thrombosis Day on October 13;