a treaty between the governments of the United Kingdom and People’s Republic of China signed in 1984 setting the conditions in which Hong Kong was transferred to Chinese control and for the governance of the territory after 1 July 1997.

The Joint Declaration of Pope Francis and Patriarch Kirill, also known as the Havana Declaration, was issued following the first meeting in February 2016 between Pope Francis, who, as the Bishop of Rome, is the pontiff of the Catholic Church, and Patriarch Kirill of Moscow, Patriarch of Moscow and all Rus', Patriarch of the Russian Orthodox Church, the largest of the Eastern Orthodox churches.

The "Joint Declaration on the Doctrine of Justification" is a document created and agreed to by the Catholic Church's Pontifical Council for Promoting Christian Unity and the Lutheran World Federation in 1999 as a result of Catholic–Lutheran dialogue.