Rank It: Invention Years

Put five entries from invention years in order, highest first, across five rounds. Only an exact position counts, so a near miss scores nothing.

Five entries a round, five rounds, highest first. Only an exact position scores, so a near miss is worth nothing.

Each round draws five of 35 entries and asks you to order them. 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 Rank It topics.