The Little Ice Age: Big Chill - History Channel (2005)

Seven centuries ago, from 1300 to 1850, millions perished because much of the world became frozen and cold, Viking settlements collapsed, Spanish Armada decimated, European crop failures led to malnutrition and starvation, Thames River froze, food shortages and economic strain contributed to events like the French Revolution, New York Harbor froze solid, people could walk from Manhattan to Staten Island