September is World Alzheimer's Month, with 21st September being World Alzheimer's Day. World Alzheimer's Day is a global opportunity to raise awareness around, educate, encourage support of and demystify dementia. More information can be found here: World Alzheimer's Day
World Suicide Prevention Day falls on 10th September. It is an awareness day observed every year, in order to provide worldwide commitment and action to prevent suicides. More information can be found here: World Suicide Prevention Day
The International Day of Peace on 21st September is a day devoted to strengthening the ideals of peace, through observance of 24 hours of non-violence and cease-fire. The International Day of Peace was established in 1981 by the United Nations General Assembly. Two decades later, in 2001, the General Assembly unanimously voted to designate the Day as a period of non-violence and cease-fire. More information can be found here: International Day of Peace