In what year was the amendment passed to allow women to vote?

Answer 1

19th Amendment - passed in 1920

Answer 2

The nineteenth amendment to the Constitution of the United States was proposed to the legislatures of the several States by the Sixty-sixth Congress, on the 4th of June 1919, and was declared in a proclamation of the Secretary of State, dated the 26th of August, 1920, to have been ratified by the legislatures of 36 of the 48 States.
Dates of State legislature ratification by State were as follows:
10 June 1919 - Illinois (readopted 17 June 1919)
10 June 1919 - Michigan
10 JUne 1919 - Wisconsin
16 June 1919 - Kansas
16 June 1919 - New York
16 June 1919 - Ohio
24 June 1919 - Pennsylvania
25 June 1919 - Massachusetts
28 June 1919 - Texas
2 July 1919 - Iowa
3 July 1919 - Missouri
28 July 1919 - Arkansas
2 August 1919 - Montana
2 August 1919 - Nebraska
8 September 1919 - Minnesota
10 September 1919 - New Hampshire
2 October 1919 - Utah
1 November 1919 - California
5 November 1919 - Maine
1 December 1919 - North Dakota
4 December 1919 - South Dakota
15 December 1919 - Colorado
6 January 1920 - Kentucky
6 January 1920 - Rhode Island
13 January 1920 - Oregon
16 January 1920 - Indiana
27 January 1920 - Wyoming
7 February 1920 - Nevada
9 February 1920 - New Jersey
11 February 1920 - Idaho
12 February 1920 - Arizona
21 February 1920 - New Mexico
28 February 1920 - Oklahoma
10 March 1920 - West Virginia
22 March 1920 - Washington
18 August 1920 - Tennessee

Ratification 18 August 1920

Ratification by States subsequent to national ratification are as follows:

14 September 1920 - Connecticut (reaffermed on 21 September 1920)
8 February 1921 - Vermont
6 March 1923 - Delaware (after rejecting it 2 June 1920)
29 March 1941 - Maryland (after rejecting it 24 February 1920; ratification certified 25 February 1958)
21 February 1952 - Virginia (after rejecting it 12 February 1920)
8 September 1953 - Alabama (after rejecting it 22 September 1919)
13 May 1969 - Florida
1 July 1969 - South Carolina (after rejecting it 28 January 1920; ratification certified 22 August 1973)
20 February 1970 - Georgia (after rejecting it 24 July 1919)
11 June 1970 - Louisiana (after rejecting it 1 July 1920)
6 May 1971 - North Carolina
22 March 1984 - Mississippi (after rejecting it 29 March 1920)

As can be seen, this amendment was only narrowly ratifed.

Answer 3

Two part answer:

It was passed by Congress in 1919. But it wasn't ratified by the states and enacted until 1920.

Answer 4

1919

Answer 5

Genevieve is correct and the first election that women could vote in was 1920.