Question: Organized tours rarely penetrate these corners.
Seldom do tours go into these corners.

Answer: yes

Question: The First Crusade was organized to help the Byzantines recapture the Holy Land from the infidel Muslims, and resulted in victory for the Crusaders.
The Crusaders victory resulted because of the First Crusade.

Answer: yes

Question: In addition, after nearly 30 years of budget deficits, the combination of hard choices and remarkable economic growth has led to budget surpluses.
The budget has had a deficit for decades.

Answer:
yes