Math
Carl Friedrich Gauss famously solved a geometric puzzle by constructing a regular polygon with this many sides, known as a heptadecagon.
What is 17?
Since its discovery in 1846, this planet completed its very first full orbit around the sun in 2011.
This 13th-century document, signed by King John, established the principle that everyone—even the king—is subject to the law.
What is the Magna Carta?
Though commonly used as a savory topping, this "vegetable" was legally declared a vegetable by the U.S. Supreme Court in 1893 for tax reasons, despite being botanically a fruit.
What is the tomato?
This is the only bone in the human body that is not connected to any other bone, instead "floating" in the neck.
What is the hyoid bone?
This term refers to any positive integer that is equal to the sum of its proper divisors; 6 is the smallest known example.
What is a perfect number?
This is the only letter in the English alphabet that does not appear anywhere on the modern periodic table.
What is the letter J?
This 19th-century movement, featuring leaders like Harriet Tubman and Frederick Douglass, sought to end the practice of slavery.
What is Abolitionism?
This condiment, now a staple for fries, was marketed in the 1830s as a medicinal tonic to treat indigestion and diarrhea.
What is ketchup?
This complex protein in red blood cells is responsible for carrying oxygen and contains iron, which gives blood its red color.
What is hemoglobin?
This mathematical constant, roughly 3.14159, is classified as this type of number because it cannot be represented as a ratio of two integers.
What is an irrational number?
While most people identify it as a scent, the flavor of vanilla for centuries was sometimes augmented by this secretion from beaver castor sacs.
What is castoreum?
This 1945 conference between Stalin, Churchill, and Roosevelt determined the post-war division of Europe.
What is the Yalta Conference?
This expensive spice is red in color, but it is derived from the dried stigmas of this specific purple flower.
What is the Saffron Crocus (Crocus sativus)?
This essential mineral is stored in your bones and is vital for bone density; it is often found in high amounts in dairy products.
What is calcium?
This theorem states that any map in a plane can be colored with no more than this many colors so that no two adjacent regions have the same color
What is the Four-Color Theorem?
This scientific principle states that you cannot simultaneously know both the exact position and the exact momentum of a subatomic particle.
What is the Heisenberg Uncertainty Principle?
This is the name of the military government that ruled Japan from 1603 to 1868 before the Meiji Restoration.
What is the Tokugawa (or Edo) Shogunate?
Botanically speaking, these two common "nuts" are actually classified as drupes (fleshy fruits with a stone), along with peaches and olives.
What are almonds and pistachios?
This "stress hormone" is released by the adrenal glands during exercise or high-pressure situations to provide a burst of energy.
What is cortisol (or adrenaline/epinephrine)?
This 7th-century Indian mathematician is credited with the first systematic use of zero and was the first to show that subtracting a number from itself equals zero.
What is Brahmagupta?
This specific boundary separates the Earth's crust from the denser underlying mantle.
What is the Mohorovičić discontinuity (Moho)?
This turning point of the American Revolution in 1777 helped convince France to enter the war as an American ally.
What is the Battle of Saratoga?
This is the world's most expensive cheese, traditionally made from donkey milk in a single location in Serbia.
What is Pule cheese?
These are the three specific "macronutrients" that provide the body with energy through calories.
What is cortisol (or adrenaline/epinephrine)?