Donald Trump has the lowest 100-day job approval rating of any president in the past 80 years, according to an ABC ...

Donald Trump has waged an often unpredictable campaign that has upended parts of the rules-based world order that Washington ...

National DNA Day, celebrated on April 25 in the United States, honors genetic achievements like the discovery of the DNA ...

In the U.S., Arbor Day is commonly celebrated on the last Friday of April, but many states observe it based on their best ...

Arbor Day, which directly translates to “Tree Day” in Latin, takes place every year on the last Friday in April, but how did ...

As the National Park Service is celebrates National Park Week, a number of other major events are right around the corner in Washington, D.C.

Earth Day also falls during National Park Week. Celebrated for 55 years, one billion people in 193 countries host events and ...