• Sign in
  • Sign up 
  • Welcome
  • FAQ
  • Block Explorer 
  • Night Mode
  • Stolen Accounts Recovery 
  • Change Account Password 
  • Vote for Witnesses 
  • Hive Proposals 
  • OpenHive Chat 
  • Developer Portal 
  • Hive Whitepaper 
  • Privacy Policy
  • Terms of Service
logo
  • Posts
  • Proposals
  • Witnesses
  • Our dApps
LoginSign up
You are viewing a single comment's thread from:

RE: Major inventions of man. Part 2.

  • View the full context
clearbluecrypto (62)in #life • 7 years ago

What about men of african desent; Garret A. Morgans invention of the red, yellow, and green traffic light, helped prevent traffic and accidents.

7 years ago in #life by clearbluecrypto (62)
$0.00
    1 vote
    • clearbluecrypto
    Reply 0
    Sort:  
  • Trending
    • Trending
    • Votes
    • Age