Happy International Day of Light!Light plays a critical role in life, no matter how you think about it. It is crucial not only to science, culture, art, and education, but also to sustainable development, medicine, communication, and energy.We celebrate the International Day of Light to make sure there is awareness of how important light is, and to ensure the strengthening of peaceful international scientific cooperation through collaboration and dialogue.
Nelson Mandela International Day
Nelson Mandela International Day is observed every year on July 18 to pay tribute to Nelson Mandela, a South African
