British people say "Happy Christmas" because in the 19th century the word "merry" also meant "intoxicated" so they wanted to separate it from public insobriety.
Iquitos, Peru is the largest city in the world inaccessible by road. It's located deep in the Amazon rainforest and has over 400,000 people.
Heroin was initially used to treat people addicted to morphine.
There are more living organisms in a teaspoonful of soil than there are people on earth.
Spain was neutral in WWI and WWII, but experienced a civil war (1936-1939) which killed over 500,000 people.
In Newfoundland, Canada, the Atlantic Ocean sometimes freezes so people play hockey on it.
About 1 in 9 people lack access to an improved water source.
Nearly 700 million Chinese people drink contaminated water.
People in Africa and Asia have to walk an average of 3.7 miles (6 KM) to collect water.
2% of people who jump off the Golden Gate Bridge survive the fall. One man even jumped off for "fun".