Timeline - 1950s
| March | 1959 |
|---|---|
Kitagawa Motor Co., Ltd. (present Soude Factory) joined Yamaha group. |
| July | 1955 |
|---|---|
Yamaha Motor Co., Ltd. founded after separation from Nippon Gakki. |
| January | 1955 |
|---|---|
 |
Hamakita Factory of Nippon Gakki (present Yamaha Corp.) built and work started on Yamaha's first motorcycle model, the 125cc YA-1. |
