Quick Take:
The term "o'clock" is a 14th-century abbreviation for "of the clock."
It was used to distinguish mechanical clock time from solar time (sundials).
We still...
The states of Maryland and Virginia each donated land to form the federal district, which included the pre-existing settlements of Georgetown and Alexandria.
Named in...
Key Takeaways
China’s one-child policy led to a severe gender imbalance, leaving tens of millions of Chinese men without prospective wives in their own country....
