
1) 1963 Schwinn Stingrays were first introduced and changed the world of bike forever. By 1968 70% of all bicycles sold in the United States were Schwinn Stingrays or copies of them.
Before this bicycle was in stores, people were removing parts off their bicycles to create a more motocross feel. When this bike hit the market, it was targeted at those people and fueled the newly arising sport of BMX.

2) 1970 Scott Breithaupt was one of the first to be noticed racing BMX in Long Beach, California. Around the same time Palm Park running BMX races in Santa Monica, California.
He was one of the first well know riders that was noticed at the time when BMX was brand new. Because Breithaupt was one of the first to be noticed biking, he remains to be one of the original bikers that was there from the start.

3) 1974 A point in BMX evolution where bikes started becoming stronger race specific.
At this point in the 70’s, manufacturers started catching onto the trend, and began making stronger bike for racing. By this point a large majority of bikes being assembled were designed for BMX racing. This was the race for who had better equipped bikes in store.

4) 1976 BicycleMotocross Action Magazine (BMXA) founded by, Bob Osborn, which, rose to the top as the main voice for BMX for about three decades.
This was the first magazine specified for BMX only. BMXA was the first to provide monthly information on nearly all the news about BMX. Because of this magazine, it established BMX as a sport and garnered the interest of several other BMX affiliated magazines.

5) 1977 BMX Freestyle artist, Bob Haro was recognized for doing funny looking tricks on his BMX bike. Beginning of “trick riding”.
He was the man that let his actions speak for him. His actions were his “funny looking stunts” and these stunts lead to a whole new area for BMX to branch off to. This branch is what we call today: “Flatland BMX-ing”. He was the one of the first of his kind to invent this style of riding.

6) 1984 Freestyle BMX became an official sport after BMX star Bob Morales formed the American Freestyle Association.
AFA was the first governing body for BMX freestyle and started out promoting events at skateboard parks. The AFA was so popular that virtually every state throughout the country held local events.

7) 1988 Freestyle BMX started downsizing and branched of into other subcategories such as street, vert, flatland, dirt, and park.
All these bikes are designed specifically for the division that its categorized in. From different sized tires and frames to having only front, rear or no brakes, these bikes handled differently according to its use.

8) 1992 The revival of Freestyle BMX by the insane riding and bicycle stunts of BMX idol, Mat Hoffman.
At this point, the hype of the BMX era was dying and less people were getting involved. Because of Hoffman, he sparked peoples interest once again to revitalize BMX. Hoffman brought the sport to new heights never thought possible, inventing the majority of the Vert tricks today.
Source
(Source: 23mag.com)