// todo need optimize like in event.jsp. Add indexing or not indexing this page. Sign language was used by the deaf, but wasn't widely used and varied between people.
A larger use was for secret communication (8 set 1620 ano – 8 set 1720 ano) (Linha do tempo)
Sign language was used by the deaf, but wasn't widely used and varied between people.
A larger use was for secret communication (8 set 1620 ano – 8 set 1720 ano)
