Higher or Lower: Invention Years

Compare invention years one pair at a time. Say whether the hidden number is higher or lower, and keep the streak alive as long as you can.

Two entries, one number hidden. Say whether it is higher or lower than the one you can see, and the streak runs until you are wrong.

35 entries to compare, two at a time. Values are year. Year of first working version or public release, not of the patent or the idea.

What is in this set

Aeroplane, Bitcoin, Compact disc, DVD, Email, iPad, Jet engine, Light bulb, Mobile phone, Personal computer, Post-it note, Steam engine, Telescope, Text message, UPI, Wi-Fi, and 19 more.

Reference: when it was invented — every value. Spoils the game.

All Higher or Lower topics.