More personal telephone calls are made on Mother’s Day in the USA than on any other day in any other country.

The odds of being struck by lightning are about 600,000 to one.

92% of Chinese belong to the Han nationality, which has been China’s largest nationality for centuries. The rest of the nation consists of about 55 minority groups.

There are more than 150 million sheep in Australia, a nation of 17 million people.

The chance of being born on Leap Day is about 684 out of a million, or 1 in 1461. Less than 5 million people have their birthday on Leap Day.