9/19 3️⃣ User Network #Usenet
Inventors: Tom Truscott + Jim Ellis
In 1979, Usenet was a precursor to modern online forums, it resembles a bulletin board system where discussions are threaded. However, unlike web forums, #Usenet did not have a central server or a dedicated admin. https://t.co/zW1VP91XEa
9/19 3️⃣ 用户网络