Kerala is a state in the Indian Union located at the southern part of the Indian peninsula. It is bordered on the north by Karnataka, south and east by Tamil Nadu, and west by the Arabian Sea. Thiruvananthapuram, the capital, Kochi the business capital and another major city is Kozhikode. The principal spoken language is Malayalam though other languages are also spoken. Kerala is one of the most densely populated states in India and ranks 12th among states in terms of population.
The etymology of Kerala is a matter of conjecture. In the prevailing theory, Kerala is an imperfect Malayalam portmanteau that fuses kera ("coconut palm tree") and alam ("land" or "location"). Another theory is that the name originated from the phrase chera alam ("Land of Cheras"). Natives of Kerala, known as Keralites or Malayalis, thus refer to their land as Keralam.
A 3rd-century-BC Asokan rock inscription mentioning a "Keralaputra" is the earliest surviving attestation to Kerala. In written records, Kerala was mentioned in the Sanskrit Epic Aitareya Aranyaka. Later, figures such as Katyayana, Patanjali, Pliny the Elder, and the unknown author of the Periplus of the Erythraean Sea displayed familiarity with Kerala. In the last centuries BC this region became famous among the Greeks and Romas for its spices, particularly black pepper.
According to legend, Kerala was an Asura-ruled kingdom under Mahabali. Onam, the national festival of Kerala, is dedicated to Maveli's memory. Another legend has Parasurama, an avatar of
Mahavishnu, throwing his battle axe into the sea; from those waters, Kerala arose. The ancient Cheras, whose mother tongue and the court language was Tamil, ruled Kerala from their capital at Vanchi. They were constantly at war with the neighbouring Chola and Pandya kingdoms. A Keralite identity, distinct from the Tamils and associated with the second Chera empire, became linguistically separate under the Kulasekhara dynasty (c. 800–1102). By the beginning of the 14th century, Ravi Varma Kulasekhara of Venad established a short-lived supremacy over southern India. After his death, Kerala became a conglomeration of warring chieftaincies, among which the most important were Calicut in the north and Venad in the south.
The Chera kings' dependence on trade meant that merchants from West Asia and Southern Europe could establish coastal posts and settlements in Kerala. The Jewish, Christian, and Muslim immigrants established Nasrani Mappila and Muslim Mappila communities. The Jews first arrived in Kerala in 573 BC. The works of scholars and
Eastern Christian writings state that Thomas the Apostle visited Muziris in Kerala in 52 AD to proselytize amongst Kerala's Jewish settlements. However, the first verifiable migration of Jewish Nasrani families to Kerala is of the arrival of Knai Thoma in 345 AD. Muslim Merchants(Malik Ibn Dinar) settled in Kerala by the 8th century AD and introduced Islam. After Vasco Da Gama's arrival in 1498, the Portuguese gained control of the lucrative pepper trade by subduing Keralite communities and commerce.
Conflicts between Kozhikode (Calicut) and Kochi(Cochin) provided an opportunity for the Dutch to oust the Portuguese. In turn, the Dutch were ousted by Marthanda Varma of the Travancore Royal Family who routed them at the Battle of Colachel in 1741. In 1766, Hyder Ali, the ruler of Mysore invaded northern Kerala, capturing Kozhikode in the process. In the late 18th century, Tipu Sultan, Ali’s son and successor, launched campaigns against the expanding British East India Company; these resulted in two of the four Anglo-Mysore Wars. He ultimately ceded Malabar District and South Kanara to the Company in the 1790s. The Company then forged tributary alliances with Kochi (1791) and Travancore (1795). Malabar and South Kanara became part of the Madras Presidency.
Kerala saw comparatively little defiance of the British Raj. British Raj. Nevertheless, several rebellions occurred, including the 1946 Punnapra-Vayalar revolt, and leaders like Velayudan Thampi Dalava, Kunjali Marakkar, and Pazhassi Raja earned their place in history and folklore. Many actions, spurred by such leaders as Vaikunda Swami, Sree Naryana Guri and Chattampi Swamikal, instead protested such conditions as untouchability; notable was the 1924 Vaikom Satyagraham. In 1936, Chitra Thirunal Bala Rama Varma of Travancore issued the Tample Entry Proclamation that opened Hindu temples to all castes; Cochin and Malabar soon did likewise. The 1921 Moplah Rebellion involved Mappila Muslims rioting against Hindus and the British Raj.
After India gained its independence in 1947, Travancore and Cochin were merged to form Travancore - Cochin on 1 July 1949. On 1 January 1950 (Republic Day), Travancore-Cochin was recognised as a state. The Madras Presidency was organised to form Madras State several years prior, in 1947. Finally, the Government of India's 1 November 1956 States Reorganisation Act inaugurated the state of Kerala, incorporating Malabar district, Travancore-Cochin (excluding four southern taluks, which were merged with Tamil Nadu), and the taluk of Kasargod, South Kanara. A new legislative assembly was also created, for which elections were first held in 1957. These resulted in a communist led government through ballot - the world's first of its kind - headed by E.M.S.Namboodiripad. Subsequent social reforms favoured tenants and labourers. As a result, living standards, education, and life expectancy improved dramatically.
Geography
Kerala is wedged between the Arabian Sea and the Western Ghats. 
Lying between north latitudes 8°18' and 12°48' and east longitudes 74°52' and 72°22', Kerala is well within the humid equatorial tropics. Kerala’s coast runs for some 580 km (360 miles), while the state itself varies between 35 and 120 km (22–75 miles) in width. Geographically, Kerala can be divided into three climatically distinct regions: the eastern highlands (rugged and cool mountainous terrain), the central midlands (rolling hills), and the western lowlands (coastal plains). Located at the extreme southern tip of the Indian Subconitnent, Kerala lies near the centre
of the Indian tectonic plate; as such, most of the state is subject to comparatively little seismic and volcanic activity. Pre-Cambrian and Pleistocene geological formations compose the bulk of Kerala’s terrain.
Eastern Kerala lies immediately west of the Western Ghats's rain shadow; it consists of high mountains, gorges and deep-cut valleys. 41 of Kerala’s west-flowing rivers, and 3 of its east-flowing ones originate in this region. Here, the Western Ghats form a wall of mountains interrupted only near Palakkad, where the Palakkad Gap breaks through to provide access to the rest of India. The Western Ghats rises on average to 1,500 m (4920 ft) above sea level, while the highest peaks may reach to 2,500 m (8200 ft). Just west of the mountains lie the midland plains composing central Kerala; rolling hills and valleys dominate. Generally ranging between elevations of 250–1,000 m (820–3300 ft), the eastern portions of the Nilgiri and Palni Hills include such formations as Agastyamalai and Anamalai.
Kerala’s western coastal belt is relatively flat, and is criss-crossed by a network of interconnected brackish canals, lakes, estuaries, and rivers known as the Kerala Backwaters. Lake Vembanad-Kerala’s largest body of water—dominates the Backwaters; it lies between Alappuzha and Kochi and is more than 200 km² in area. Around 8% of India's waterways (measured by length) are found in Kerala. The most important of Kerala’s forty four rivers include the Periyar (244 km), the Bharatapuzha (209 km), the Pamba (176 km), the Chaliyar (169 km), the Kadalundipuzha (130 km) and the Achankovil (128 km). The average length of the rivers of Kerala is 64 km. Most of the remainder are small and entirely fed by monsoon rains. These conditions result in the nearly year-round water logging of such western regions as Kuttanad, 500 km² of which lies below sea level. As Kerala's rivers are small and lack deltas, they are more prone to environmental factors. Kerala's rivers face many problems, including summer droughts, the building of large dams, sand mining, and pollution.
Climate
Kerala’s maximum daily temperature averages 36.7 °C; the minimum is 19.8 °C.With 120–140 rainy days per year, Kerala has a wet and maritime tropical climate influenced by the seasonal heavy rains of the southwest summer monsoon. In eastern Kerala, a drier tropical wet and dry climate prevails. Kerala's rainfall averages 3,107 mm annually. Some of Kerala's drier lowland regions average only 1,250 mm; the mountains of eastern Idukki district receive more than 5,000 mm of orographic precipitation, the highest in the state.In summers, most of Kerala is prone to gale force winds, storm surges, cyclone-related torrential downpours, occasional droughts, and rises in sea level and storm activity resulting from global warming. Mean annual temperatures range from 25.0–27.5 °C in the coastal lowlands to 20.0–22.5 °C in the highlands.
Flora and Fauna
Much of Kerala's
notable biodiversity is concentrated and protected in the Agasthyamalai Biosphere Reserve in the eastern hills. A
lmost a fourth of India's 10,000 plant species are found in the state. Among the almost 4,000 flowering plant species (1,272 of which are endemic to Kerala and 159 threatened) are 900 species of highly sought medicinal plants.
Its 9,400 km² of forests include tropical wet evergreen and semi-evergreen forests (lower and middle elevations—3,470 km²), tropical moist and dry deciduous forests (mid-elevations—4,100 km² and 100 km², respectively), and montane subtropical and temperate(
shola) forests (highest elevations—100 km²). Altogether, 24% of Kerala is forested. Two of the world’s Ramsar Convention listed wetlanda-Lake Sasthamkotta and the Vembanad-Kol wetlands-are in Kerala, as well as 1455.4 km² of the vast Nilgiri Biosphere Reserve. Subjected to extensive clearing for cultivation in the 20th century, much of Kerala's forest cover is now protected from clearfelling. Kerala's fauna are
notable for their diversity and high rates of endemism: 102 species of mammals (56 of which are endemic), 476 species of birds, 202 species of freshwater fishes, 169 species of reptiles (139 of them endemic), and 89 species of amphibians (86 endemic). These are threatened by extensive habitat destruction, including soil erosion, landslides, salinization, and resource extraction.
Eastern Kerala’s windward mountains shelter tropical moist forests and tripical dry forests, which are common in the Western Ghats. Here,
sonokeling (Indian rosewood),
anjili,
mullumurikku (Erythrina), and Cassia number among the more than 1,000 species of trees in Kerala. Other plants include bamboo, wild black pepper, wild cardamom, wild cardamom, the calamus rattan palm (a type of climbing palm), and aromatic vetiver grass (Vetiveria zizanioides)
Living among them are such fauna as Asian Elephant, Bengal Tiger, Leopard (
Panthera pardus), Nilgiri Tahr, Common Palm Civet, and Grizzled Giant Squirrel. Reptiles include the King Cobra, viper, python, and crocodile. Kerala's birds are legion-Peafowl, the Great Hornbill, Indian Grey Hornbill, Indian Cormorant, and Jungle Myna are several emblematic species. In lakes, wetlands, and waterways, fish such as
kadu (stinging catfish) and
Choottachi (Orange chromide—
Etroplus maculatus; valued as an aquarium specimen) are found.
