Did the ancient Celts use an alphabet called Coelbren, ultimately originating with the Greek script, as some scholars in the past claimed?

According to Roman mythology, what was the origin of the Latin alphabet? What was its alleged connection to the script of the Greeks?

The Greek alphabet, long believed to have emerged in the 8th century BC, may actually be centuries older, according to new research led by Associate Professor Willemijn Waal. Backed by a prestigious ...