※ 다음 글을 읽고 물음에 답하세요.
Nero, the emperor of Rome, used colored lenses. He used them to watch fighting games. Could you see better with the lenses? We are not sure.
The first real eyeglasses ⓐwere invented in 1284 or 1285. However, no one knows exactly who ⓑinvented them. We only know that they ⓒwere invented by an Italian.
In the 14th century, only rich people could use eyeglasses. They were a symbol of wealth and power. The invention of the printing press in 1456. however, ⓓwere changed the history of eyeglasses. More and more people ⓔread books and more and more people needed eyeglasses. As a result, eyeglasses became an important part of everyday life.
1. 다음 중 안경의 대중화에 커다란 영향을 미친 사건은?
2. 밑줄 친 ⓐ~ⓔ에서 쓰임이 어색한 것은?