[1][2] On November 19, 1919, and again on March 19, 1920, the United States Senate voted against ratifying the Treaty of Versailles, forestalling American participation in the League of Nations.

Passage of the House resolution was delayed in deference to negotiations between the Allies and Germany over a reparations settlement.

In late June the House and Senate reconciled their differences, and the Knox–Porter joint resolution passed Congress on July 1.

The Frelinghuysen estate was destroyed by fire in the 1950s, and the site is now occupied by a shopping center and parking lot, with a small plaque marking the place where the home once stood.

[4][5] The article in the next day's New York Times concerning the signing started with the words, "War with Germany ended as it began, by Congressional declaration and Executive signature on American soil.