[fragmede]

how about

    the wheel
    bicycles
    sewing machines
    hand tools
    musical instruments
    open radio bands like CB and FRS
    ham radio (licensing exists but not corporate control) 
    meshtastic
    blacksmithing
    glass blowing
    garden tools
    propane camp stoves
    mechanical clocks and watches
    open source software (the ecosystem overall, not specific projects)
    email as a protocol
    RSS
    SMS as a protocol
    USB storage devices
    SIP based VOIP
    mesh networking gear
    3d printers in the hobby market
    drones under 250g
    amateur astronomy gear
    microcontrollers like Arduino
    LED strips and controllers
    bicycles
    composting tech
    sourdough starter culture tech (yes really)

[dudeinjapan]

the wheel --> chariots, pottery (see Sumeria), Roman roads, siege weapons (play Civ!)

bicycles --> police forces, see the Japanese in Malaya 1941

sewing machines --> factory labor, mass production of clothes

hand tools --> Guild systems

musical instruments --> organized religion, national anthems, cultural soft power

open radio bands --> policing, surveillance

blacksmithing --> weapons

etc. etc. we can do this all day :)

[skeezyjefferson]

RSS was such a redundant idea