World Pneumonia Day is annually observed on November 12 since 2009. This observance was introduced to raise public awareness of the death toll among children under 5 caused by pneumonia.
Sun Yat-sen's Birthday is an unofficial holiday in the Republic of China, that is observed on November 12. This holiday commemorates the birthday anniversary of a prominent Chinese revolutionary and politician Sun Yat-sen. The holiday is also known as Doctor's Day, since Sun Yat-sen was also a doctor.