Now 146 out of 193 UN members recognise Palestine, but what does that mean for Palestinians?
What does recognition mean for Palestine?
Spain, Ireland and Norway did not recognise an existing state, just the possibility of one.
The move will see increased diplomatic relations between the Palestinian Authority and the three countries.
All have announced that they will recognize Palestine according to the pre-1967 borders with East Jerusalem as its capital.
Dublin has said it will upgrade both the Palestinian mission in Dublin and its own offices in Palestine to embassies while Oslo and Madrid have already done so.
The hope is that the symbolism will boost Palestine’s international standing and put more pressure on Israel to open negotiations aimed at ending the war.
The move has already spurred Slovenia, which is expected to recognise Palestine by June 13.
Given Ireland’s and Spain’s European Union memberships, it is also hoped the move will put the status of Palestine firmly on the agenda during the June 6-9 EU elections.