Quizzes
General Knowledge
Geography Quizzes
History Quizzes
Food Quizzes
Sport Quizzes
Science Trivia
Who Sang
Movie Quizzes
Math Tests
Challenging History Questions
1. Which one of these inventions or discoveries came first?
π©
Report
Internal Pacemaker
Integrated Circuit
Bicycle
Synthetic Plastic Called Bakelite
Next Question
π
Leaderboard
Report a problem
β
What's wrong?
The marked correct answer is wrong
The question is unclear / ambiguous
Typo in the question or an answer
Other
Cancel
Submit report
π
Get a new quiz challenge every day β stay on top of the leaderboard!
Subscribe
β