Inventions and Discoveries that Change Our Lives Many inventions and discoveries have changed the way we live. One of the most important inventions is the telephone. Before the telephone, people could not talk to each other from far away. Alexander Graham Bell invented the telephone in 1876. Now, we can call anyone in the world. Another important discovery is electricity. Before electricity, people used candles to see in the dark. Thomas Edison invented the light bulb in 1879, and it changed the world. Now, we have light in our homes, and we can work at night. In the medical field, penicillin is an important discovery. It was discovered by Alexander Fleming in 1928. Penicillin helps doctors treat infections. It has saved many lives. These inventions and discoveries have made life better and easier for everyone. Which of the following does NOT have an answer in the text?
A) What is the main purpose of penicillin?
B) What did Alexander Graham Bell invent?
C) Why do people admire Thomas Edison?
D) What achievements did Alexander Fleming have?