The UN family in Lebanon held an "Open Day" at Beit Beirut in Sodeco to commemorate its UN Day, which marks the anniversary of the entry into force in 1945 of the UN Charter.  The event showcased the collective efforts of the UN's 25 different agencies, funds and programmes in the fields of peacekeeping, conflict prevention, humanitarian assistance, development and human rights in Lebanon. The UN system in Lebanon has maintained long-standing relationships with the consecutive governments and people of Lebanon since 1948. The UN organizations in Lebanon are working hard, together with the Lebanese authorities, to promote peace, stability and prosperity, improving the lives of millions of people on Lebanon’s territory.

With the ratification of the UN Charter in 1945, the United Nations officially came into being. Lebanon was one of the UN's 51 founding members. The UN now has 193 member States. 24 October has been celebrated as United Nations Day since 1948. In 1971, the United Nations General Assembly recommended that the day be observed by Member States as a public holiday to bring attention to the work, role and achievements of the UN and its family of specialized agencies.