When, Where,
or How?
"Who"
or "Why"?
Spacetime
To Leap or
Not To Leap
Leaplings
100

The number of consecutive generations in the Keogh family (of Ireland and UK) to be born on February 29, according to the Guinness World Records.

What is three?

100

Because March 1, 2023, is a Wednesday and March 1, 2024, is a Friday; therefore, Thursday is skipped.

Why is it called a "Leap" year?

100

The number of degrees the Earth's axis is currently tilted to cause seasonal changes (rounded to the nearest degree).

What is 23 degrees?

100

The years between 1898 and 1913 that are Leap Years.

What are 1904, 1908, and 1912?

100

Born February 29, 1976, an American rapper who released a platinum-certified debut album "Venni Vetti Vecci." 

Who is Ja Rule?

200

Defined as the first Sunday after the full moon that follows the spring equinox (vernal equinox), this holiday was off by 10 days by AD 1582 and prompted a new calendar.

What is Easter?

200

This European dictator introduced the first leap year around 46 B.C., but his method created too many leap years.

Who was Julius Caesar?

200

Every century, this gets 1.7 milliseconds longer.

What is a day?

200

The years between 1598 and 1614 that are Leap Years.

What are 1600, 1604, 1608, and 1612?

200

Born February 29, 1972, the current prime minister of Spain.

Who is Pedro Sanchez?

300

By the third century BCE, this African country followed a solar calendar that spanned 365 days with an extra day every four years.

What is Egypt?

300

In 1582, this pope introduced the calendar we currently use in the United States.

Who was Pope Gregory XIII?

300

The definition of a tropical year (also known as a solar year).

What is the amount of time it takes for Earth to completely orbit the sun once?

300

The years between 1994 and 2010 that are Leap Years.

What are 1996, 2000, 2004, and 2008?

300

Born February 29, 1992, an American actor who currently plays Reggie Franklin / A-Train in the superhero Amazon Prime Video series "The Boys."

Who is Jessie T. Usher (Jr)?

400

Prior to 1582, extra holiday celebrations and a 23-day month were added throughout a year to align this ancient calendar with a solar year.

What is the Julian Calendar?

400

In 1752, the British Parliament adopted the current calendar and had to skip 11 days, after which this colonial writer and inventor wrote, "It is pleasant for an old man to be able to go to bed on September 2, and not have to get up until September 14.”

Who was Benjamin Franklin?

400

The International Bureau of Weights and Measures added one to the Coordinated Universal time on December 31, 2016, to align atomic clocks with solar time.

What is a Leap Second?

400

The years between 2023 and 2035 that are Leap Years.

What are 2024, 2028, and 2032?

400

The number of millions of people across the world who will celebrate their birthday February 29, 2024.

What is approximately 5 (millions, 0.068% of people worldwide)?

500

Prior to the adoption of the new calendar by Great Britain in 1752, the beginning of the year was on this date, to commemorate the religious Feast of the Annunciation (also known as "Lady Day.")

What is March 25?

500

Because in 1288, Queen Margaret of Scotland passed a law applying to any man who refused a Leap Day proposal of marriage.

Why were some Scottish men forced to pay a fine on Leap Day?

500

The difference between the number of days measured by lunar cycles each year compared to a year measured by Earth's orbit.

What is approximately 11 days?

500

The years between 1793 and 1805 that are Leap Years.

What are 1796 and 1804?

500

Born February 29, 1984, he swam a leg on the American men’s 4×100-meter freestyle team that set a world record at the Beijing Olympic Games in 2008.

Who is Cullen Jones?