1824/2367 – 1851/2394
        The reign of King Rama III
 

1828/2371 – 1831/2374
Gutslav from Netherlands Mission Society came to Bangkok
1828/2371 – 1832/2475
Reverend Tomlin from London Mission Society came to Bangkok
1828/2374
Reverend David Abeele from American Board of Commissioners for Foreign Missions (ABCFM) came for Bangkok survey and set up ABCFM in Bangkok.
1833/2376
Reverend Taylor Jones - American Baptist (from Myanmar) arrived in Bangkok and started working.
1833/2376
A Treaty between the United States of America and Siam was signed.
1834/2377
On the 24^th July, Reverend William P.  Buel of ABCFM arrived in Bangkok.
1835/2378
Doctor Bradley came in the ABCFM, arrived Bangkok on the 18^th of July. It took him 1 year and 13 days traveling. He arrived with the printing machine. Having set up a medical hall at Wat Koh, he was told to move within 5 days. So, he moved to a Catholic village at Kudee Jeen.  
1835/2378
Robinson lived with a Portuguese family.
1835/2378
Johnson lived in the raft-house in front of Santa Cruz Church
1835/2378
Printing industry was started in Siam by Doctor Bradley.
1836/2379
The Baptist Group started to use printing.
1837/2380
Mrs. Bradley taught girls at her house.
1837/2380
13^th January, Doctor Bradley performed the first operation in Siam by amputating a monk’s arm at Wat Prayoon
1837/2380
The Baptist Group had started a church. Now it is Mai Tree Jit Church, which is the first Church in Siam.
1838/2381
Phraya Phra Klung built two houses on the other side of the canal in front of Wat Prayoon. He let them to Doctor Bradley, who lived there for 14 years. The rent was 65 baht per month.  
1839/2382
King Rama III placed an order to Dr. Bradley for 9,000 leaflets announcing a prohibition of opium smoking. That was the first government’s document printed from the printing house.
1839/2382
King Rama III gave 400 baht reward to Doctor Bradley for teaching royal doctors to do smallpox vaccination. The royal doctors received 200 baht each. 
1840/2383
Reverend Jessie Caswell (ABCFM) arrived. Later, he became an English teacher for the Prince.
1840/2383
Doctor Bradley was successful to produce vaccine for smallpox for the first time in Siam.
1840/2383
Presbyterian mission in Thailand began.
1844/2387
The motor vessel arrived Siam for the first time.
1845/2388
Dr. Caswell gave English lessons to Prince Mongkut and colleagues at Wat Bovorn
1846/2389
ABCFM moved to China
1847/2390
Reverend Stephen Mattoon and his wife, also Doctor Samuel R. House of American Presbyterian arrived.
1848/2391
Dr. Caswell passed away. Prince Mongkut came to the funeral and gave a roll of white silk cloth to his wife.
1849/2392
There was a wide spread of cholera epidemic.
1849/2392
ABCFM permanently closed the office in Siam.  
1849/2392
First Presbyterian Church was set up (among foreigners)
1850/2393
AMA began to work in Siam.
1851/2394
Baptist’s Office was on fire.
1851/2394
On the 3^rd of April, King Rama III passed away.