20th Century (1 янв 1901 г. – 31 дек 2000 г.)
Описание:
- Conjoined (Siamese) twins were separated successfully for the first time in 1953- Acquired immune deficiency syndrome (AIDS) was identified as a disease in 1981
- Walter Reed demonstrated that mosquitoes carry yellow fever in 1900
- The human imunodeficency virus (HIV) causing AIDS was identified in 1984
Average life span was 60 to 80 years
Добавлено на ленту времени:
Дата:
1 янв 1901 г.
31 дек 2000 г.
~ 100 years
