Islam first arrived in Thailand during the ninth century through Arab traders, but it wasn't until the 13th century that local communities began to embrace the faith, primarily in the southern regions. Today, Muslims make up about 5% of Thailand's population, and there are nearly 4,000 mosques in the kingdom, with over 100 in Bangkok.

The Tonson Mosque, founded in 1688 during the Ayutthaya Kingdom, is an example of the cultural confluence that shaped the region. The original building was made of teak and resembled Buddhist monasteries, but it was renovated in 1952 to have a more Middle Eastern design with Thai influences. The mosque is an active learning hub, with a center for young students and classes teaching Islamic studies.

Muslims have been living in Bangkok for centuries, and the mosque is a familiar sight for residents. Next to the mosque lies a historic graveyard, where Muslim community leaders such as Chaophraya Chakri, who served as the prime minister of Siam in the 18th century, and Phraya Ratchawangsan, a 19th-century naval commander, are buried.

Retno Minarti, a visitor from Muslim-majority Indonesia, was surprised to find such a large mosque in a Buddhist-majority country. She was impressed by the number of people attending Friday prayers and the presence of civil servants. For Ruedon Samard, a long-time resident of Bangkok, the mosque holds personal significance as his family has been attending prayers there for generations, and his ancestors are buried in the graveyard. He finds peace at the mosque, just as Buddhists find peace at their temples.

The Tonson Mosque's history reflects the rich cultural diversity of Thailand and the coexistence of different religions. Despite being a minority faith, Muslims have played an integral role in the country's history and continue to contribute to its vibrant cultural landscape.