Memorial Day

Memorial Day is a federal holiday observed on the last Monday of May in the United States. Memorial Day is for remembering the men and women who died while serving in the United States Armed Forces.

Father's Day

Father's Day was started by a woman; Sonora Smart Dodd. It became an official holiday in the United States in 1972. It is celebrated on the third Sunday of June.

Mother's Day

Mother's Day was started by Anna Jarvis. It became an official holiday in the United States in 1914. It is celebrated on the second Sunday of May.

Ketchup

Ketchup is made from tomatoes, with other spices or ingredients added.

Human tongue

The human tongue is a muscle.

Chess not solved

The game of chess is still not solved but checkers is.

Cricket

The sport of cricket was first played in England in the 1500s.

Record player

The phonograph is also called a record player.

Phonograph invented

The phonograph was invented in 1877 by Thomas Edison.

I

One is written as I in Roman numerals.

V

Five is written as V in Roman numerals.

X

Ten is written as X in Roman numerals.

L

Fifty is written as L in Roman numerals.

C

One hundred is written as C in Roman numerals.

D

Five hundred is written as D in Roman numerals.

State of the Union

The State of the Union is an annual address given by the president of the United States. It reports on the condition of the country and also his agenda.

E pluribus unum

E pluribus unum is a Latin motto that means "out of many, one".

Experto crede

Experto crede is a Latin motto that means "believe one who has had experience".

Carpe diem

Carpe diem is Latin for "seize the day".

00:00 hours

In 24-hour time, 12:00 a.m. midnight is not 24:00 hours, it is 00:00 hours.

23:00 hours

In 24-hour time, 11:00 p.m. is 23:00 hours.

M

One thousand is written as M in Roman numerals.

Royal flush

The highest hand in poker is a royal flush.

Sextillion

Sextillion has 21 zeros. Sextillion comes after quintillion which has 18 zeros.

Water body

The human body is made up of mostly water.

Earth age

The Earth is approximately 4.5 billion years old.

Earth and water

The Earth is approximately 70% water. Only 30% is solid ground.

Piano invented

The piano was invented in the early 1700s by Bartolomeo Cristofori.

[sic]

Sic in its bracketed form, is used to show that the text is spelled and written correctly even though it may appear to the reader that it is not.

Second vice president

Thomas Jefferson was the second vice president of the United States.

Second president

John Adams was the second president of the United States.