1828Civil Rights
== History ==
Hancock County was created on March 1, 1828, and named for John Hancock, the first person to sign the Declaration of Independence.
1835Architecture
Route 40, the National Road, was built through Hancock County around 1835.
1850Government
Greenfield was incorporated as a town in 1850.
1853Architecture
In 1853, the first steam railroad was completed by the Indiana Central Railroad at the south edge of Greenfield.
1876Government
Greenfield was incorporated as a city in 1876 with a population of 2,023.
1887History
The greatest single period of growth began in 1887 when natural gas was discovered in the area.
1918History
A statue of James Whitcomb Riley, which stands in front of the Hancock County Courthouse, was erected in 1918.
1990History
The sister city program began in 1990 and continues today.
2000History
=== 2000 census ===
As of the census of 2000, there were 14,600 people, 5,917 households, and 4,017 families living in the city.
2008Economy
This facility was operated by Eli Lilly and Company until 2008.
2010History
=== Climate ===
== Demographics ==
=== 2010 census ===
As of the census of 2010, there were 20,602 people, 7,983 households, and 5,382 families living in the city.
2011Education
Greenfield-Central High School also underwent renovation in 2011 and 2022.