World Hearing Day
World Hearing Day is held on March 3. It is held each year to raise awareness on how to prevent deafness and hearing loss and promote ear and hearing care across the world. This event in the first decade of the month March is annual. 
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The inner ear is no larger than a pencil eraser in circumference. The eardrum moves less than a billionth of an inch in response to sound. Not all living creatures hear with ears. Snakes use jawbones, fish respond to pressure changes, and male mosquitoes use antennae.
As one of our most important senses, the ability to hear enables us to connect to the world for many very important, even vital, reasons. Most importantly, hearing connects us to people enabling us to communicate in a way that none of our other senses can achieve.
World Hearing Day has been celebrated since 2007 to raise awareness about how to prevent deafness and hearing loss. Until 2016, it was known as International Ear Day.
Similar holidays and events, festivals and interesting facts
World Compliment Day on March 1 (appeared after many successful editions of “National Compliment Day” in the Netherlands);
World Civil Defence Day on March 1
Nutrition Month in Canada and USA on March 1
Ovarian Cancer Awareness Month in Great Britain on March 1 (when a woman is diagnosed at the earliest stage, her chance of surviving ovarian cancer for five years or more doubles from just 46 per cent to more than 90 per cent);
National Procrastination Week in the UK on March 1 (the goal is to leave unnecessary tasks at a later time, provide mental and emotional relief, help reduce stress and anxiety);
National for the Blind in El Salvador on March 1 (Nacional de Las Personas Ciegas);
Self-injury Awareness Day on March 1
Time for a Cuppa in England on March 1 (gather your friends and family on a cup for a cup of tea, a piece of cake and a nose - all for good reason!);
World Butt Day on March 3 (The idea for the holiday belongs to Kara Kitty Blair, Rae Woodbuns, Melissa Benzinger in 2012);
World Birth Defects Day on March 3
World Obesity Day on March 4 (The first World Obesity Day took place in 2015);
International Scrapbooking Industry Day on March 4
International Day Against Sexual Exploitation on March 4
World Engineering Day on March 4 (anniversary of the founding of the World Federation of Engineering Organizations - WFEO, in 1968);
World Tennis Day on March 4 (International Tennis Federation)