“The exhibition offered a calming impression not only to believers but also to non-believers,” said the council’s chairman, Han Byung-Seong.

The event “motivated non-believers to become interested in faith through the lives of martyrs who overcame the class system and realized equality and brotherhood,” Han added.

The exhibition featured portraits of 124 martyrs including Paul Yun Ji-chung who were killed for refusing to recant their faith in the 18th and 19th centuries.

Yun (1759-1791) was among the first Catholics persecuted and martyred when the Buddhist rulers of the Joseon dynasty started a crackdown on Christianity, accusing the faith of being associated with foreign colonialists and conflicting with Confucian ethics.

The persecution amid a ban on Christians that spanned over a century produced between 8,000 to 10,000 martyrs, church records say.

During the beatification ceremony in Seoul on Aug. 16, 2014, Pope Francis hailed the Korean martyrs for their great sacrifice.

“In God’s mysterious providence, the Roman Catholic faith was not brought to the shores of Korea by missionaries. Rather, it entered through the hearts and minds of the Korean people themselves,” Francis said.

The 124 martyrs are one step away from sainthood in the Catholic Church.

The organizers pointed out that the event proved as a motivation against a decline in Catholic Church memberships and participation following the pandemic.

In March, a survey by the Korean Catholic Research Institute of the Catholic Bishops’ Conference found that 36.1 percent of Catholic youth in their twenties joined Sunday mass in 2023 compared to 53.2 percent before the pandemic.