The Song Dynasty was first civilization in the world to use banknotes, aka paper money. They also were the first to use gunpowder, and the first to make a permanent navy. They were also the first to discern the North using a true compass. They had many, many firsts, which helped develop the world into how it is today.
Sorry, that this is only one half of your answer. But, I hope this still helps.
The Great Schism was between the Roman Catholic Church and the Greek Orthodox Church.
The Great Schism refers to a conflictive religious event that occurred in 1054. In this conflict there was a mutual rupture and excommunication between the highest hierarch of the Catholic Church in Rome, the Pope or Bishop of Rome (together with the Christianity of Occident), and the ecclesiastical hierarchies of the Orthodox Church (together with the Christianity of the East) especially the principal of them, the Ecumenical Patriarch of Constantinople.
Steve Easterbrook is the president but what are the other oprions
