2012 Event The United Kingdom freezes 100 million pounds of assets of Syrian leaders 2012 Event Europe's cold wave continues, with over 400 dead; the Danube River freezes over for 170 km 2011 Event Walid al-Muallem, foreign minister of Syria, denounces the European Union for the travel bans and asset freezes it has imposed on Syria 1979 Event U.S. halts Iranian oil imports and freezes Iranian assets 1962 Event Stevenson demands U.S.S.R. ambassador Zorin answer regarding Cuban missile bases saying "I am prepared to wait for my answer until hell freezes over" 1942 Event National Boxing Association freezes titles of those serving in armed services 1938 Event Los Angeles freezes at 28 degrees F 1715 Event Thames River freezes 1434 Event Thames River freezes