Short answers, pulled from the story.
The first human to speak a complete sentence did so approximately 1.6 million years ago. This event occurred long before the invention of writing or the construction of the first stone tools. It marked the transition from simple animal communication to a system capable of infinite expression.
A Sanskrit grammarian named Panini formulated 3959 rules that described the morphology of his language in the 5th century BC. This ancient work remains a foundational text in the study of linguistics. It demonstrated that language was a structured system of rules governing how sounds and meanings combined.
The language Rotokas spoken in Papua New Guinea contains only 11 phonemes. It is one of the simplest languages in the world compared to others like Taa which utilizes 141 phonemes. These sounds are organized into syllables and words through a system of phonemes.
This phenomenon is known as social deixis and it enforces social distance and respect through linguistic means. It illustrates how language constructs and maintains social hierarchies and group identities. Languages vary widely in how they encode social position through elaborate systems of address.
Academic consensus holds that between 50% and 90% of languages spoken at the beginning of the 21st century will probably have become extinct by the year 2100. This rapid decline is driven by the process of language contact where speakers shift to more influential speech communities. The death of a language represents a catastrophic erosion of human cultural heritage.
The only gene that has definitely been implicated in language production is FOXP2. This gene plays a crucial role in the development of the brain areas responsible for language processing including Broca's area and Wernicke's area. Mutations in this gene may cause a kind of congenital language disorder.