On 15 December 1970.
December 15 1970
1818 when they were admitted to the union
it is 1970
class of 2010
July 1, 1971
1818
There have been 4 Illinois constitutions. The first, adopted in 1818 when Illinois was admitted to the Union, followed by constitutions ratified in 1848, 1870, and 1970 which is the current constitution.
The first Illinois Constitution was adopted on August 26, 1818.
The most recent constitution in Illinois was on July 1st 1971
1971
1971
Ratified
1970
u.s. constitution was ratified on September 17, 1787
The Constitution was ratified December 7, 1787.
The present Constitution of the United States is the original Constitution of the United States. It was ratified 17 September 1787. The Constitution has been amended 27 times, and the 27th Amendment was ratified 7 May 1992.