British sign language is the sign language used by the deaf in Great Britain. Although the United States and Britain share a spoken language, British Sign Language is separate and distinct from American Sign Language. One example of their differences is that ASL uses a single-handed alphabet while BSL uses two hands for their fingerspelling system.
... between the Pacific and Arctic Oceans was broader than it is now. Only two rivers are worthy of mention. The Tym, 250 m. long and navigable by rafts and light boats ...