This is the 331st most frequent Russian word.
призвал
Called; urged; appealed.
The verb 'призвал' is used to mean 'urged' here, showing encouragement or a call to action.
Он призвал всех к спокойствию.
He urged everyone to remain calm.
The verb 'призвал' here conveys summoning or requesting others to participate in an activity.
Тренер призвал игроков к усиленной тренировке.
The coach called the players to intensive training.
In this context, 'призвал' denotes an appeal or serious request towards an ideological or collective action.