May 5 is Lusophone Culture Day in the Community of Portuguese Language Countries (CPLP.) The Lusophone Commonwealth consists of 9 member states Angola, Brazil, Cape Verde, Guinea-Bissau, Mozambique, Portugal, São Tomé and Príncipe, Timor-Leste, and Equatorial Guinea, and and 19 associate observers in Europe, the Americas, Asia, and Africa.
The purpose of the CPLP is to deepen cultural, economic, and political cooperation among the Lusophone (Portuguese-speaking) nations of the world. The prime objectives are:
- Promotion and dissemination of the Portuguese language
- Political and diplomatic cooperation between the member states of the CPLP
- Cooperation in all areas, including education, health, science and technology, defense, agriculture, public administration, communications, justice, public safety, culture, sports and media
Learn more here.

This image was created by Cristiano Tomás and is available under a CC BY-SA 4.0 license. It shows a map of CPLP member states (blue), associate observers (green), and officially-interested countries & territories (gold).