International Biomedical Laboratory Science Day
International Biomedical Laboratory Science Day is held on April 15. It is celebrated annually on 15 April to promote and acknowledge the role of biomedical laboratory professionals in diagnostic and preventative healthcare organisations. This event in the second decade of the month April is annual. 
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The first International BLS Day was celebrated in 1997 after it was established in Oslo, 1996.
It is organised by the International Federation of Biomedical Laboratory Science (IFBLS) which has over 185,000 members around the world, this includes IBMS Head of Education Alan Wainwright, who is on the IFBLS Board of Directors.
Similar holidays and events, festivals and interesting facts
International Moment of Laughter Day on April 14 (is focuses on laughter as a way to de-stress);
America Day on April 14 (Día de las Américas [es] with the support of the Organization of American States);
International Goalkeeper Day on April 14
World Chagas Disease Day on April 14
World Art Day on April 15
Universal Day of Culture on April 15
International Banana Day on April 15
International Microcredit Day on April 15
National American Sign Language Day in United States on April 15 (National ASL Day);
International Pizza Cake Day on April 16
World Day Against Child Slavery on April 16
World Entrepreneurship Day on April 16
World Leisure Day on April 16
Stress Awareness Day on April 16
Youm El Ilm or Science Day in Algeria on April 16