Knowledge Zone#OnThisDay Birth Anniversary of Francis Crick (1916) - co-discoverer of the structure of the #DNA molecule.
Birth Anniversary of Italian mathematician, astronomer and engineer Giovanni Domenico Cassini (1625). He discovered four satellites of the planet Saturn.
Happy Birthday Sir Tim Berners-Lee (1955) - known as the inventor of the #WorldWideWeb.
Today is World #OceansDay.
