The Porto Jewish Community has managed to accumulate over 3 million views on its YouTube channel despite being based in a relatively small country due to a deliberate shift into high-budget, internationally recognized filmmaking and global educational outreach.

Today its 43rd video was posted on YouTube, referring to an event that took place on September 6, 2026: The European Day of Jewish Culture. This annual event fosters a sense of communion between the general Portuguese population and local Jews—a shared identity that touches everyone's soul, given their common history. The Jewish community of Porto explicitly emphasizes this sense of communion because the history of Portuguese Jews is fundamentally inseparable from the history of the Portuguese nation itself.

When the community opens its doors for the European Day of Jewish Culture—inviting thousands of local citizens into the Kadoorie Mekor Haim Synagogue and its museums—it is not introducing a foreign culture, but rather reintroducing the Portuguese people to a foundational pillar of their own national identity. These claims have an extensive and deep historical basis spanning nearly nine hundred years of shared coexistence, tragedy, and cultural fusion.

Jews did not simply migrate to Portugal; they were present before the nation was even born, having lived in the region since Roman and Moorish times. When King Afonso Henriques established the Kingdom of Portugal in 1143, he heavily relied on the local Jewish population to help settle, administer, and build the country. Prominent Jewish figures, such as Don Yahya ibn Yaish, served as royal advisors and governors.

For centuries, Jewish scientists, cartographers, and astronomers were indispensable to Portugal's greatest historical milestone: the Age of Discovery. By the 15th century, Jews made up an estimated 20% of the Portuguese population (and also world Jewish population), deeply woven into the economic, scientific, and cultural fabric of cities like Porto.

The shared identity that touches everyone's soul is also forged in shared tragedy. In 1497, pressured by political alliances with Spain, King Manuel I ordered the forced conversion en masse of all Portuguese Jews. Unlike Spain, which expelled its Jewish population, Portugal forcefully kept them by legally transforming them into "New Christians". This historical event meant that Jewish blood, culture, and traditions were systematically integrated into mainstream Portuguese society. Traces of Jewish culture—from unique culinary traditions to regional linguistic idioms—became completely absorbed into traditional Portuguese life. Because of these centuries of forced assimilation, genetic and historical studies estimate that up to 50% of the current Portuguese population carries Jewish ancestry.

Today, the annual celebration of the European Day of Jewish Culture serves as a profound closing of a historical circle. This relationship is so deeply recognized that the Portuguese government officially designated Porto’s Jewish educational and cultural initiatives as projects of high national interest.

When the Portuguese public visits the Kadoorie Synagogue and the museums on the European Day of Jewish Culture, they step away from their daily lives—steeped in a socialist value system that is hostile to them—and relive a glorious past that their ancestors shared with the Jewish people.