Poké mon is an animation adapted from a game, so the first game was1the red and green version released on February 27th, 996, which has been 22 years and 2 months.

Poké mon is a registered trademark of Nintendo in Taiwan Province Province from 1998, so it has been 20 years.

If it is the timeline in the game, the difference between red, green and ruby and sapphire is about 3 years, the difference between pearls, diamonds, platinum and gold and silver is about 2 years, the difference between black and white is about 2 years, and the difference between XY and black and white is about 2 years. The setting of blueberries shows that the sun, the moon and black and white are also different by 2 years. What is uncertain here is that pearl diamonds are still a few years away from black and white.

However, the illustrations of 137 3D dragon, red and blue here are said to be made with the most advanced technology, while the illustrations of Sun and Moon are said to be made with the most advanced technology about 20 years ago. ....

However, I suspect that this 20th anniversary is the 20th anniversary of the sale of the Sun and the Moon, and cannot represent the 20-year gap between the Sun and the Red, Green and Blue Timeline.

If you are talking about the official history of Poké mon, the mythical era recorded by Fengyuan and Xinao is completely untested. The only thing that can be verified is that the illustrated book mentions the fossil helmet 140, and the Genosekert 649 existed 300 million years ago.