Complex sentence: After a series of conflicts, a peace treaty, was signed at Oreshek on August 12,1323, between Sweden and Grand Prince Yury and the Novgorod Republic which was the first agreement on the border between Eastern and Western Christianity running through present-day Finland.
Split into simpler sentences: After a series of conflicts, a peace treaty was signed at Oreshek on August 12,1323 between Sweden and Grand Prince Yury and the Novgorod Republic. This was the first agreement on the border between Eastern and Western Christianity running through present-day Finland.