VIDEO: Pamela Shanti Pack is a specialist in off-width rock climbing. Watch her technical climbing technique as she follows cracks in the cliff face and leaves the canyon floor far behind.

ON THIS DAY IN AMERICAN HISTORY On April 24, 1800, President John Adams establishes the Library of Congress using $5,000 appropriated by Congress. The first books were ordered from London and arrived in 1801. They were kept in the U.S. Capitol. In 1802, the library had 964 books and nine maps. During the War of 1812, the Capitol was burned down causing the loss of 3,000 books. In order to replace the loss, former President Thomas Jefferson sold his extensive library of nearly 6,500 volumes to Congress to rebuild the collection. Another fire in 1851 destroyed about two thirds of the then 55,000-volume library, including many of Jefferson’s books. These losses were replaced within a few years. Today, the library has about 38 million books as well as photographs and recordings.

Opposition Democrats have long been united in their dislike of President Donald Trump. But when it comes to the idea of trying to impeach the president and remove him from office, Democrats, it seems, are sharply divided.

VIDEO: This week on Plugged In : As the World Health Organization marks World Immunization Week, we look at what’s behind the alarming outbreak of measles cases. Guest host Jim Malone gets the straight facts from a medical expert and finds out what individuals and local officials are doing to combat the problem.

VIDEO: The saguaro cactus is an icon of the Sonoran Desert. It can grow up to 18 meters tall and live up to 200 years. VOA traveled to Arizona to learn more about this magnificent plant.

A United States initiative toward three key figures within Hezbollah’s financial networks would be the first in a series of actions against the Lebanese militant group to drain it of resources, analysts predict.