• How did the U.S. start using the red/green light system for traffic lights?

    where did it originate? Why did they decide to use red lights for stop, green lights for go and yellow lights for caution? How did they come up with the arrangement?
    where did it originate? Why did they decide to use red lights for stop, green lights for go and yellow lights for caution? How did they come up with the arrangement?
    4 answers · History · 1 decade ago
  • How did the U.S start using the red/green light system for traffic?

    where did it originate? Why did they decide to use red lights for stop, green lights for go and yellow lights for caution? How did they come up with the arrangement?
    where did it originate? Why did they decide to use red lights for stop, green lights for go and yellow lights for caution? How did they come up with the arrangement?
    5 answers · Other - Cars & Transportation · 1 decade ago
  • Where did the term "*****" come from?

    When did the term first originate? What was the original meaning? I know people get offended by the word and that it was used to refer to the slaves during the slavery period and African-American people after the Civil War.
    When did the term first originate? What was the original meaning? I know people get offended by the word and that it was used to refer to the slaves during the slavery period and African-American people after the Civil War.
    10 answers · History · 1 decade ago
  • What do you call someone who is the opposite of a Feminist?

    Feminist are people who bash men. What do you call a person who speaks on behalf on men. I mean someone who is pro-man, not necessarily against women or anything.
    Feminist are people who bash men. What do you call a person who speaks on behalf on men. I mean someone who is pro-man, not necessarily against women or anything.
    28 answers · Gender Studies · 1 decade ago
  • Pink Lemonade?

    How did they first make pink lemonade? When did it first appear? And where did they get the pink lemons?
    How did they first make pink lemonade? When did it first appear? And where did they get the pink lemons?
    3 answers · Other - Food & Drink · 1 decade ago
  • If you were 19 yrs old, would you marry someone whose 35 yrs old?

    I'm not planning on doing this but I know somebody who is.
    I'm not planning on doing this but I know somebody who is.
    34 answers · Marriage & Divorce · 1 decade ago