espocrm/application/Espo/Modules/Crm/Resources/metadata/app/clientRoutes.json

{
    ":entityType/activities/:id/:targetEntityType": {
        "params": {
            "controller": "Activities",
            "action": "activities"
        },
        "order": 1
    },
    ":entityType/history/:id/:targetEntityType": {
        "params": {
            "controller": "Activities",
            "action": "history"
        },
        "order": 1
    }
}