Tracing the history of SEO is kind of like trying to trace the history of the handshake. We all know it exists, and we know it’s an important part of business. But we don’t spend a ton of time thinking about its origins — we’re mostly concerned with how we use it day-to-day.
But unlike the handshake, SEO is fairly young, and changes frequently. Quite appropriately, it appears to be a millennial — its birth is predicted to fall somewhere around 1991. A Brief History of Search & SEO
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