A single spark can start a prairie fire. What is the corresponding major historical event and what is its great historical significance to the China Revolution?

Mao Zedong opens Jinggangshan revolutionary base area

Significance: The establishment of Jinggangshan Revolutionary Base has ignited the spark of "the armed regime of workers and peasants", completed the great strategic shift of China's revolutionary center work from the city to the countryside, embarked on the rural encirclement of the city, and finally seized the city, opening up a new road. The strength of the * * * production party in China is still very weak, the enemy is very strong, and the road to revolution is still very long. Also shows that China * * * began to mature and found the correct revolutionary road.