About Frisian Language
According to Wikipedia.org, The Frisian language is closely linked to English. It was formally spoken in the province of Noord-Holland and the Netherlands. This language is mainly spoken in three small areas and each one of them has its dialect. These dialects are West Frisian that is spoken in the province of Friesland. This province is located in the Netherlands. East Frisian is spoken in the Saterland west of Oldenburg, Ger.; and North Frisian. The written records are available from the end of the 13th century. However, they are written in Old Frisian and this stage of language ended in the 16th century. The Old Frisian has all the features that distinguish English and Frisian from other languages in Germany. Even though the Frisian language has been the written language for about 300 years. There have been a lot of changes made in the modern era.
About Igbo Language
According to Wikipedia.org, Igbo is a prominent language among the Igbo natives. These natives belong to the ethnic group that resides in Eastern Nigeria. This language is termed 'Igbo izugbe' and was officially adopted in 1972. The foundation of this language is based on various dialects. It includes Owerri (Isuama), Anambra (Awka) and Umuahia (Ohuhu). Many other languages are related to the Igbo language. The list includes Ika, Ukwuani, and Ogba. All these are also considered as the dialects of Igbo. There are around 42 million native speakers of Igbo. You will be surprised to see that the writing system is quite innovative. Most of it is written in Latin alphabets. It is the official language of Nigeria but is spoken by other people in the world too.