Table of development periods

All you want to know about Table of development periods

This is an overview table of the periods in human development.

Note the difference between the reached age and the age number, which is one more. For instance, a newborn is 0 years old during the 1st year.

Different sources may have various definitions, but the outline below is generally accepted.

Age, approximately Period
Reached age Nr
0-9 Weeks/Week of
gestational age		 1-10 Prenatal development Human embryogenesis
10 - birth 11 - birth Human fetal development
0 days/day 1 infancy neonate/newborn[1]
1-2 2-3
3-6 4-7
1 weeks/week 2
2-3 3-4
4-5 5-6
6-7 7-8
2 months/month 3
3 4
4 5
5 6
6-7 7-8
8-9 9-10
10-11 11-12
12-17 13-18
1.5 years/year 2.5 childhood Early childhood toddlerhood
2 3 Preschooler
2.5 3.5
3 4 play age
3.5 4.5
4 5
4.5 5.5
5 6
6 7 Middle childhood
7 8 School age
8 9
9 10
10 11 preadolescence
11 12
12 13 Adolescence puberty
13 14
14 15
15 16
16 17
17 18
18 19
19 20 Adulthood Young adult
39 40
40 41 Middle age [2]
59 60
~65 ~66 Old age
various various
various various Death

See also

References

  1. ^ ""Neonate"". Merriam-Webster online dictionary. Merriam-Webster. Retrieved on 2007-03-27.
  2. ^ Collins Dictionary
v • d • e
Human development: biological - psychological - Overview table
Pre- and perinatal
Infancy
Childhood
Adolescence
Adulthood
Theorists-theories
Retrieved from "http://en.wikipedia.org/wiki/Table_of_development_periods"

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