mapsofindia.com/maps/kerala/kerala.htm
The map provided by Mr SyroMalankara is not to scale and is supposedly from the period 1839, when the region of Kerala (Malabar Coast) was already a British colony for forty four years (since 1795).
The state of Kerala was created along linguistic lines in 1956, in two stages:
**During British Raj 1795 - 1947, the region of Malabar Coast consisted of two princely states indirectly ruled by British with a British Resident and Malabar District, directly ruled by British as part of Madras Presidency. **
**Princely state of Travancore in the south, comprises of today’s districts - Idukki, Kottayam, Pathanamthitta (part of Kottayam until 1982), Alapuzha (Allepey), Kollam (Quilon), Thiruvanathapuram (Trivandrum), Kanyakumari District of present Tamil Nad.
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**Princely state of Cochin in central Kerala comprises of today’s districts, Ernakulam (where Cochin is located) and Thrissur district to the north of it.
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In 1949, two years after Indian independence, the two princely states joined to form the Cochin-Travancore state.
It 1956, it united with Malabar District of North Kerala, under direct British rule, to form Kerala state. **The districts which comprise the Malabar District of British Raj are - Kannur (Cannanore), Kozhikode (Calicut), Wayanad, Mallapuram, Palakkad (Palghat), and Chavakkad Taluk of Thrissur district. **
**The southernmost Tamil speaking Kanyakumari district of Travancore was given to Tamil Nad. Malayalam speaking Kasargode district north of Malabar district in South Canara of Karnataka was given to Kerala.
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The kingdom of Travancore until 1741 was very small. The capital was in Padmanabhapuram.
After the Dutch were defeated at Colachel in 1741 by Hindu king Marthanda Varma, the capital was moved to Trivandrum. The king of Travancore annexed Thekkumkur, Munjanad, Devikulam etc, north of Travancore by 1754. There were other small principalities north of Travancore which were likewise annexed post 1741 - Kollam, Allepey etc. During British Raj starting 1795, Kottayam was formed as a revenue district, and was part of upper Travancore. In other words, parts south of Cochin annexed by king of Travancore post 1741.
Cochin was a small kingdom. The areas which constitute present Thrissur district was annexed in the late eighteenth century by Shakthan Thampuran, who signed a treaty with the British in 1791. **Thrissur district was created in 1949 when princely states of Travancore and Cochin were united.
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The map provided by Mr SyroMalankara is not to scale for it does include Thrissur district as part of princely state of Cochin, which it became since 1791. **The map shows the period 1839, 44 years after Kerala became a part of British Raj. Marthanda Varma annexed areas south of Cochin in 1741 - 1754. **
**The map has nothing to do with history of Christianity prior to arrival of Europeans, or kingdoms on Malabar Coast during the Portguese period, 1500 - 1663, during which Synod of Diamper took place, nor the Dutch period when the kingdom of Travancore was extended to the North 1741 - 1754.
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