Answer:
The author's message about the Celtic people's legacy is that though they did not have any written account, they left a legacy of oral tales.
Step-by-step explanation:
"Who were Celts?" is an article written by Amy Baskin. The article talks about the Celtic tribe and how their stories and accounts still prevail even after no accounts were written by them t first-hand.
The message that the author wants to convey concerning Celt's legacy is that though they never had any written account, their stories are still told in literature. The legacy they left was not of written account but oral account. They passed on their legacy by word of mouth.
Textual evidence:
"The Celts may not have kept written records of themselves, but thankfully, they were great storytellers. Much of their oral tradition has been passed down from one generation to the next."