The conflict in Ireland grows more bitter, culminating in 1920's Bloody Sunday.

On January 21, 1919, the first Dáil Éireann met in Dublin and declared itself the parliament of an Irish Republic. That same day, IRA fighters in County Tipperary stole 168 pounds of gelignite, killing the two police officers who were guarding it.

As Woodrow Wilson recovered from his stroke, the effort to gain Senate approval for the Treaty of Versailles floundered, and the US government was without a leader.

As hard as it was to negotiate the Treaty of Versailles, Woodrow Wilson returned home to an even greater challenge: winning Senate approval of the treaty.