1897
Citizens Union is founded as a nonpartisan political party to defeat the Tammany Hall machine
1901
Seth Low, Citizens Union's mayoral candidate, is elected Mayor of the City of New York
1908
Citizens Union shifts from political party to nonpartisan good government group to avoid patronage
1910
First Voters Directory published to guide New Yorkers on candidates for elected office
1914
Citizens Union wins reforms requiring voter signature to protect election integrity
1915
Slate voting reversed; Citizens Union enables voters to choose candidates across parties
1923
Home rule for NYC achieved, giving local power thanks to Citizens Union’s advocacy
1924
Citizens Union leads successful fight against subway development through Central Park
1933
Fiorello LaGuardia, endorsed by CU, is elected Mayor to reform and fight Tammany control
1936
Citizens Union helps secure proportional representation for City Council elections