This is our day guide for Tuesday December 14th 2021 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?
1989 - USSR reformer Andrei Sakharov dies of a heart attack hours after an important speech in which he demanded more freedom.
1914 - Lisandro de la Torre and others found the Democratic Progressive Party (Partido Demócrata Progresista, PDP) at the Hotel Savoy, Buenos Aires, Argentina.
1900 - Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
1896 – The Glasgow Underground Railway is opened by the Glasgow District Subway Company.
557 - Constantinople is severely damaged by an earthquake.
