The Constitution of 3 May 1791 is the title of an exhibition staged by the Polish History Museum and the Lithuanian Institute of History. On 19 October, it was presented in the Stained Glass Gallery of the Seimas of the Republic of Lithuania in Vilnius.

The ceremony was attended by the President of the Republic of Poland Andrzej Duda, the President of the Republic of Lithuania Gitanas Nausėda, the Deputy Speaker of the Sejm of the Republic of Poland Małgorzata Gosiewska, the Speaker of the Seimas of the Republic of Lithuania Viktorija Čmilytė-Nielsen, the Deputy Speaker of the Seimas of the Republic of Lithuania Paulius Saudargas, the Director of the Polish History Museum Robert Kostro, as well as representatives of the Polish-Lithuanian Parliamentary Assembly.

The exhibition is part of the observance of this year’s 230th anniversary of the adoption of the Constitution of 3 May. In Lithuania, 2021 is celebrated as the Year of the Constitution of 3 May and the Reciprocal Guarantee of Two Nations, while in Poland as the Year of the Constitution of 3 May.

The viewers can become familiar with what impacted the shape of the Law on Government, as the Constitution was officially called: on the one hand the dynamic development of social thought and bold reforms in selected areas, and on the other the difficult political situation inside the country and in the international context. The exhibition also shows the pride and joy accompanying the adoption of the ground-breaking legal act, the enthusiastic reaction of the foreign press to it as well as the strength the memory of the Constitution of 3 May 1791 gave the inhabitants of the Polish–Lithuanian Commonwealth in the dreary times of the Partitions and later of Poland and Lithuania under communist rule after the Second World War.

The authors have selected the most typical cultural texts illustrating the phenomena showcased in the exhibition: paintings and literary works, prints of the period as well as photographs. In the Ukrainian-language version of the exhibition, more attention has been given to the themes related to the situation of the Greek Catholic and Orthodox Churches, as well as the 1792 Polish–Russian war and the Partition Sejm in Grodno.

The exhibition can be viewed until 25 October 2021.

In 2021, The Constitution of 3 May 1791 has been shown in selected cities in Lithuania and Ukraine, such as Kyiv, Kamianets-Podilskyi, Lutsk, Kharkiv, Panevėžys and Šiauliai.

The exhibition enjoys the patronage of the Deputy Speaker of the Polish Sejm Małgorzata Gosiewska.