Books and Literature
Obscure Sports
Geography
Science
Libraries
Modern History
100

This melancholy Danish prince agonizes over whether "to be or not to be."

Hamlet

100

This winter sport involves sliding granite stones toward a target while teammates sweep the ice.

curling

100

This African river, traditionally considered the world's longest, flows through Egypt.

the Nile
100

This scientist introduced the theory of general relativity in 1915.

Albert Einstein

100

Created in 1876, this numerical classification system is used by most public libraries for nonfiction.

Dewey Decimal Classification

100

The Berlin Wall, which had divided a German city since 1961, fell in this year. 

1989

200

This Jane Austen novel opens with "It is a truth universally acknowledged..."

Pride and Prejudice

200

This racket sport, invented in 1960s America, is now the fastest-growing sport in the U.S.  

pickleball

200

This small mountain kingdom is entirely surrounded by South Africa.

Lesotho

200

This gas makes up roughly 78% of Earth's atmosphere.

nitrogen
200

This piece of furniture, once a cornerstone of library reference, was largely replaced by OPACs in the late 20th century.

the card catalog

200

During this 1969 NASA mission, Neil Armstrong became the first human to walk on the moon.

Apollo 11

300

Margaret Atwood's dystopian novel set in the Republic of Gilead, narrated by a woman called Offred.

The Handmaid's Tale

300

This Basque sport uses a curved wicker glove called a cesta to hurl a ball at speeds exceeding 180 mph.

jai alai

300

The capital of Kazakhstan, briefly renamed Nur-Sultan from 2019 to 2022, now goes by this earlier name.

Astana

300

Discovered at CERN in 2012, this particle is responsible for giving other particles their mass and is nicknamed the "God particle."

the Higgs boson

300

Founded in the 3rd century BCE under the Ptolemies, this ancient institution was among the largest libraries of the classical world before its destruction.

the Library of Alexandria

300

Over roughly 100 days in 1994, this Central African nation experienced a genocide that killed an estimated 800,000 people, primarily Tutsi.

Rwanda

400

This Russian novelist's Crime and Punishment follows the impoverished ex-student Raskolnikov after he murders a pawnbroker.

Fyodor Dostoevsky

400

This Irish sport, often called "the fastest game on grass," uses a wooden stick called a hurley and a small ball called a sliotar.

hurling

400

These two nations are the only "doubly landlocked" countries in the world. They're surrounded exclusively by other landlocked countries.

Liechtenstein and Uzbekistan

400

This 19th-century Russian chemist built the first widely accepted periodic table by leaving gaps for elements not yet discovered.

Dmitri Mendeleev

400

Preferred by most academic and research libraries in the U.S. (and Pingry's US and MS libraries), this classification system organizes knowledge into 21 letter-based classes.

Library of Congress Classification

400

The 1986 Chernobyl nuclear disaster in Soviet Ukraine forced the permanent evacuation of this nearby city.

Pripyat

500

This 1967 novel follows the Buendía family across seven generations in the fictional town of Macondo.

One Hundred Years of Solitude

500

This Japanese martial art, whose name translates to "way of the sword," uses bamboo swords called shinai and protective armor called bogu.

kendo

500

This Pacific nation consisting of a single raised coral atoll is the world's third-smallest country by population, after Vatican City and Tuvalu.

Nauru

500

Developed by Jennifer Doudna and Emmanuelle Charpentier and recognized with a 2020 Nobel, this gene-editing tool repurposes a bacterial immune defense for precise DNA modification.

CRISPR-Cas9 (or CRISPR)

500

This Scottish-American industrialist funded the construction of more than 2,500 public libraries worldwide between 1883 and 1929.

Andrew Carnegie

500

Brokered by Jimmy Carter in 1978, these accords laid the groundwork for peace between Egypt and Israel.

Camp David Accords