Time Period and Process Chart of Water Harvesting Techniques "Down the Ages"
- 3rd millennium B.C.
- 3000 – 1500 B.C.
- 321 – 291 B.C.
- 3rd Century B.C.
- 1st Century B.C.
- 2nd Century A.D.
- 11th Century A.D.
- 12th Century A.D.
Cpreec; traditional water harvesting systems of india. (2007). Retrieved from http://www.cpreec.org/pubbook-traditional.htm
("Cpreec; traditional water," 2007)