1. The translation of the Bible
2. The development of the printing press
3. Gaining support of European princes and Nobles
Johann De Kalb His horse was shot, and before he could get up he was shot
California admitted as a free state, Slave trade prohibited in Washington D.C., Texas loses boundary dispute with New Mexico
The correct answer to this open question is the following.
Although there are no options provided, we can say the following.
Romans were able to move from wooden houses to more permanent structures because they started to experiment with the use of concrete, cement, and better formulas to increase the quality of this material. Romans were also capable of exploring new ideas to create forms such as vaults and arches. Let's have in mind that Romans originally used a different material called "tufa" which was a volcanic rock. A solid material but not an aesthetical one. Years later, Romans cold mix concrete with volcanic sand to create a more resistant material. With the use of marble, Romans were capable of creating marvelous buildings and temples.