This is the 16882nd most frequent Russian word.
совпало
Coincided.
Here, 'совпали' demonstrates the coincidence of plans of multiple entities.
Наши планы поехать на озеро совпали.
Our plans to go to the lake coincided.
In this instance, 'совпало' indicates temporal concurrence of two events.
Время их приезда совпало с началом концерта.
The time of their arrival coincided with the beginning of the concert.
Here, 'совпали' is used to express the matching or agreement of experimental results with expectations.