Q 01/05

What color were the original Post-it Notes?

A) Light blue

B) Canary yellow

C) Pale pink

D) Mint green

Answer · why

B) Canary yellow

The color was an accident: the lab next door to the Post-it team happened to have scrap paper of that shade lying around.

Q 02/05

What did the three Ms in 3M originally stand for?

A) Modern Milling and Manufacturing

B) Michigan Machines and Materials

C) Midwest Metals and Minerals

D) Minnesota Mining and Manufacturing

Answer · why

D) Minnesota Mining and Manufacturing

The company started in 1902 trying to mine an abrasive mineral, failed, and pivoted to sandpaper, tape and eventually sticky notes.

Q 03/05

In the United States, Labor Day falls on the first Monday of which month?

A) November

B) September

C) August

D) October

Answer · why

B) September

The first Labor Day parade was held in New York City on September 5, 1882, organized by the Central Labor Union.

Q 04/05

International Workers' Day on 1 May commemorates the 1886 Haymarket affair in which city?

A) Detroit

B) Pittsburgh

C) Chicago

D) New York

Answer · why

C) Chicago

A rally for the eight-hour day ended with a bomb and gunfire; the date was chosen to honor the workers who died.

Q 05/05

Which carmaker switched its factory workers to a five-day, 40-hour week in 1926?

A) Studebaker

B) General Motors

C) Chrysler

D) Ford

Answer · why

D) Ford

Henry Ford argued that workers with free time and money would buy more cars, including his.