2. 20 years old BC

3. 1700: 35 years old.

4. 1800: 37 years old.

5. Early 20th century: 6 1 year.

6. 1985: 62 years old.

7. 1995-2000: 63.9 years old.

8.2000-2005: 65.5 years old

9.2005-20 10: 66.8 years old.

10,2010-2015: 68.1year.

Extended data:

Scientific researchers believe that the life span of human beings is slowly increasing at present, and this growth has no boundaries. Once upon a time, researchers regarded 120 as the limit of human age, which almost no one could surpass. However, it can be seen from the example that people's life span is extending, and people's life span is likely to be extended indefinitely, and there is no unified upper limit standard.

After analyzing the birth and death in Sweden in the past 240 years, scientists found that the age of the oldest person is on the rise. By the 1990s, the age of the Swedish birthday girl had risen to 109.

The length of life is influenced by many factors. The strength of innate endowment, acquired training, living conditions, social system, economic conditions, medical and health conditions, etc. Will have an impact on human life.

Reference: Baidu Encyclopedia-Life span