History Questions: Video Series

Nuclear energy originated with the discovery of uranium in the late 1700s, but it is most well-known for the atomic bombs used during World War II. Understand the history of this powerful energy with answers from an experienced teacher in this free video on world history.

The Berlin wall was built in the '60s to separate East and West Germany, but it was torn down in the late '80s to reunite the two sides of the country. Find out what happened during those years of segregation with answers from an experienced teacher in this free video on world history.

Before pencils were invented, people used a wide variety of materials to write, such as paint, ink, charcoal, ashes, dirt and slate. Find out how humans have made marks in the past with answers from an experienced teacher in this free video on world history.

The staple was originally invented during the reign of King Louis XIV, who had his name inscribed on each staple. Find out when common staples were more widely used with answers from an experienced teacher in this free video on world history.

The guns used during the Civil War were muzzle-loaded, which was very time consuming on the battle field. Find out more about the types of guns that were used with answers from an experienced teacher in this free video on world history.

The first electric refrigerator was invented by General Motors Company in the early 1900s, but more primitive models were developed in the early 1800s by Thomas Moore. Discover the origins of the modern-day fridge with answers from an experienced teacher in this free video on world history.

Chemotherapy was officially discovered to be effective in 1958 when a tumor was stopped, but now there are 52 different kinds of chemotherapy used to treat a variety of cancer. Find out how chemotherapy developed with answers from an experienced teacher in this free video on world history.

The refrigerated railroad cars were invented by Jonas Wilder to ship butter from one place to another. Discover the history of transported refrigeration with answers from an experienced teacher in this free video on world history.

Pueblo Indians built their homes on top of mesas in order to have a more advantageous position for defense and protection. Learn more about the Pueblo community with answers from an experienced teacher in this free video on world history.

The printing press changed the world because it increased the amount of information available to a huge mass of people. Find out how Gutenberg influenced Europe with answers from an experienced teacher in this free video on world history.

Roller coasters originated as ice slides in northern Europe, but the southern countries began to experiment with wooden tracks, rails and cars. Find out how roller coasters came to be with answers from an experienced teacher in this free video on world history.

In the Middle Ages, suits of armor served as the soldier's identity, as they were often very intricately designed and crafted. See examples of Medieval armor with answers from an experienced teacher in this free video on world history.

Chocolate was not invented, but it was first cultivated by the Mayans and Aztecs who created a special drink from the cocoa bean. Find out how chocolate came to be one of the most sought-after sweets with answers from an experienced teacher in this free video on world history.

The Great Wall of China was built during the Ming Dynasty to protect the Northern part of China, and it is more than 4,000 miles long. Learn more about this wonder of the world with answers from an experienced teacher in this free video on world history.

The mailbox was invented in the mid 1800s in the United States when mailmen began to deliver mail door to door. Find out how the postage service has developed with answers from an experienced teacher in this free video on world history.

Medieval shield symbols were inspired by Christianity, mythology and family heritage, which resulted in the creation of family crests. Understand the history of Medieval shield symbols with answers from an experienced teacher in this free video on world history.

Women's rights movements began as far back as 1776 when the constitution was being written, but suffrage began in the early 1900s. Analyze the time line of women's rights with answers from an experienced teacher in this free video on world history.

The pyramids of Egypt were built originally as tombs for Pharaohs, and no one is sure exactly how they were built. Learn more about these wonders of the world with answers from an experienced teacher in this free video on world history.

Pre-colonial African inventions include papyrus paper, mummification and various musical instruments. Find out how these items developed out of Africa with answers from an experienced teacher in this free video on world history.

Kinesiology is used as a science to understand the movement of the body, as well as a healing treatment. Find out how kinesiology is used with answers from an experienced teacher in this free video on world history.

The alphabet was developed over many years into several languages, some containing a handful of characters and others including thousands. Find out how the alphabet developed with answers from an experienced teacher in this free video on world history.

The Renaissance is known as the age of exploration because it was a time of transition for technology, art and thought. Learn more about the Renaissance with answers from an experienced teacher in this free video on world history.

The Panama Canal was completed in 1914 by the United States to offer a better way to get from one ocean to the other. Find out why it took so long to build with answers from an experienced teacher in this free video on world history.

The passenger elevator was invented by a company called OTIS using hydraulic technology to navigate through large skyscrapers. Find out how this invention affected the development of cities with answers from an experienced teacher in this free video on world history.

The insulated coffee mug was developed in the late 1800s by Del Mar to keep liquids cold or hot while traveling. Understand the development of this portable device with answers from an experienced teacher in this free video on world history.