1. Blood transfusion

In 1900, Carl Rand discovered human blood types, which made blood transfusion possible.

2. Aspirin

Aspirin In 1897, the German Felix Hofmann synthesized acetylsalicylic acid. Two years later, the trade name was registered as aspirin. A century later, it became The most popular medicine.

3. Watch

Watch is one of the most changed inventions in human history and appeared in 1904.

4. Credit card

In the history of credit card money in 1920, the emergence of credit card was the biggest revolution since the emergence of currency. The first credit card was issued in the 1920s, and the most commonly used credit card was issued in 1950.

5. Penicillin

Penicillin in 1928: People say that penicillin is the most contributed drug of this century. Its inventor is the British bacteriologist Alexander Fleming.

6. Television

In 1923, the picture tube, the soul of television, was born. Television technology was widely used in the 1940s, and the era of color television was ushered in in 1954. After the 1960s, most countries have established television stations. This square box has created countless happy times for mankind.

7. Plastic

The invention of plastic can be called a masterpiece of mankind in the 20th century. Plastic has undoubtedly become an indispensable and important raw material for modern civilized society. At present, plastics have been widely used in aviation, aerospace, communication engineering, computers, military, agriculture, light industry, food industry and other industries.

8. Internet

In the 20th century, one of the huge impacts that communication technology had on human society was the use of communication technology to connect many computers together to form the Internet, that is, the Internet.

9. Airplane

Airplane On December 17, 1903, the first powered aircraft began to fly. In 1933, the world's first regular air route was opened, which greatly expanded the space for human activities.

Reference: Baidu Encyclopedia-20th Century Inventions