Some of History...
The first humans arrived in Madagascar about 2000 years ago and they were mostly from regions like India, Arabia and the continent of Africa.  These peoples were the initiators of Madagascar Society and Culture and throughout the years they formed an incredible amalgamation of tradition, language, and religion. In the 16th century, the Portuguese arrived and invaded the island but very soon they were succeeded by the arrival of the French and English. In 1794, King Andrianampoinimerina came to power and he united the various tribes to form a single kingdom in the country. 
Thus the Madagascar society and culture is a rich combination of various ethnic groups, religions and languages that make the country a united entity. 

Law ◘

Laws of Madagascar include the several rules and regulations such as Madagascar would be a secular country. It should be a republic. 
The motto of Madagascar should be “Homeland-Revolution-Liberty” and the Tri-colored flag should be the national emblem. The national anthem of the county is “Oh Dear Homeland”. 

Sovereignty should be there among people. People have the voting rights. Discrimination on the basis of race, sex, religion etc are prohibited. According to the law of the country, freedom of speech, opinion, press, association, communication etc are granted and everyone have the right to move freely inside the country. 

The law ensures that everyone have the protection of their life, residence and correspondence. No one can be punished twice for the same deeds and everyone have access to justice. Right to be educated and health is granted. The cultural heritage of the country are protected. The citizens have the right to strike and the right form an organization. According to the law of Madagascar every one have to respect the flag and the national anthem.

Religion ♠

According to a recent survey, 55 percent of the population abides by the traditional beliefs, 40 percent are Christians and the remaining 5 percent of the population are Muslims. Thus majority of the Malagasy are the followers of Christianity and they are sub-divided into Roman Catholic and Protestants. 

Betsileo and Merina are the two main ethnic groups in Madagascar. The Betsileo people are the supporters of the Roman Catholicism whereas the Merina people are the supporters of the Protestantism. 

The Christian missionaries established the belief of Supreme God and used the term "Andriamanitra" to define the Christian counterpart. 

Islam religion is also prevalent in the Madagascar society. Sunni and Shia are the two main sects of Muslims living in Madagascar. Majority of followers are the Indo-Pakistanis. Small community of the followers practices Hinduism. 

Lenguage ☺
The main Madagascar Language is the “Malagasy language” which is spoken widely by the entire population. 
Different other dialects of Madagascar exist in the different regions of the country yet they all are mutually intelligible with words having same roots and origin. French still remains one of the most important languages in Madagascar and it was due to the international status of the language. Hence both the Malagasy and French language were used in the official government publications in Madagascar. 

The island of Madagascar is planning to introduce English as the third official language after the French and Malagasy. The three main dialects of the Madagascar give the visitors an easy way of communicating while visiting Madagascar.