[Answer] What is vertigo?

Step 1 : Introduction to the question " What is vertigo? "

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Vertigo is a symptom where a person feels as if they or the objects around them are moving when they are not. Often it feels like a spinning or swaying movement. This may be associated with nausea, vomiting, sweating, or difficulties walking. It is typically worse when the head is moved. Vertigo is the most common type of dizziness.

The most common diseases that result in vertigo are benign paroxysmal positional vertigo (BPPV), Ménière's disease, and labyrinthitis. Less common causes include stroke, brain tumors, brain injury, multiple sclerosis, migraines, trauma, and uneven pressures between the middle ears. Physiologic vertigo may occur following being exposed to motion for a prolonged period such as when on a ship or simply following spinning with the eyes closed. Other causes may include toxin exposures such as to carbon monoxide, alcohol, or aspirin. Vertigo typically indicates a problem in a part of the vestibular system. Other causes of dizziness include presyncope, disequilibrium, and non-specific dizziness.

More Info: en.wikipedia.org

[Ans] NASA mathematician Katherine Johnson was the subject of which film?

Step 1 : Introduction to the question "NASA mathematician Katherine Johnson was the subject of which film?"

Hidden Figures tells the true story of three brilliant African American mathematicians—Katherine Johnson, Dorothy Vaughan, and Mary Jackson—who worked at NASA during the early years of the U.S. space program. Katherine Johnson’s extraordinary mathematical calculations were critical to the success of missions such as John Glenn’s orbital flight in 1962. The film highlights both their groundbreaking contributions to space exploration and the racial and gender barriers they overcame while working at NASA during the era of segregation.

[Answer] NASA mathematician Katherine Johnson was the subject of which film?

Step 1 : Introduction to the question "NASA mathematician Katherine Johnson was the subject of which film?"

...Hidden Figures tells the true story of three brilliant African American mathematicians—Katherine Johnson, Dorothy Vaughan, and Mary Jackson—who worked at NASA during the early years of the U.S. space program. Katherine Johnson’s extraordinary mathematical calculations were critical to the success of missions such as John Glenn’s orbital flight in 1962. The film highlights both their groundbreaking contributions to space exploration and the racial and gender barriers they overcame while working at NASA during the era of segregation.

[Ans] Which U.S. state was created as a result of the Civil War?

Step 1 : Introduction to the question "Which U.S. state was created as a result of the Civil War?"

West Virginia was created during the American Civil War when the northwestern counties of Virginia opposed their state’s decision to secede from the Union in 1861. Delegates from these Union-loyal counties organized a separate government and sought admission to the United States as a new state. After approval by Congress and President Abraham Lincoln, West Virginia officially became the 35th state on June 20, 1863. It remains the only U.S. state created directly as a result of the Civil War, formed from a divided Virginia.

[Answer] Which U.S. state was created as a result of the Civil War?

Step 1 : Introduction to the question "Which U.S. state was created as a result of the Civil War?"

...West Virginia was created during the American Civil War when the northwestern counties of Virginia opposed their state’s decision to secede from the Union in 1861. Delegates from these Union-loyal counties organized a separate government and sought admission to the United States as a new state. After approval by Congress and President Abraham Lincoln, West Virginia officially became the 35th state on June 20, 1863. It remains the only U.S. state created directly as a result of the Civil War, formed from a divided Virginia.

[Answer] Which state was an independent country before joining the Union?

Step 1 : Introduction to the question "Which state was an independent country before joining the Union?"

...The Lone Star State has a turbulent past. In 1519, Spanish conquistadors arrived and encountered Indigenous tribes living in the area. Spain claimed Texas from the late 17th century until the early 19th century, when Mexico gained its independence from Spain and took the territory with it. The Republic of Texas separated from Mexico in 1836, and for nearly 10 years, it was an independent country. Texas joined the U.S. for stability on December 29, 1845, making it the 28th state in the Union.

[Answer] In 1819, the U.S. took control of Florida from which country?

Step 1 : Introduction to the question "In 1819, the U.S. took control of Florida from which country?"

...The colonization of Florida began in 1565, when the Spanish arrived in St. Augustine on the northeast coast of the peninsula, establishing it as the oldest city in the United States. Even after America had gained its independence from Britain, Spain held on to Florida until 1819, when Secretary of State John Quincy Adams signed the Florida Purchase Treaty. It would be more than two decades until Florida was admitted to the Union, becoming the 27th state on March 3, 1845.