Original sentence: The modern observance of St Piran's day as a festival for the people of Cornwall dates back to the early Cornish revival period, 19th and early 20th century when Celtic revivalists sought to provide the people of Cornwall with a national day not unlike those observed in other nations
Edited sentence: The modern observance of St Piran's day as a national symbol of the people of Cornwall dates back to the early Cornish revival period, 19th and early 20th century when Celtic revivalists sought to provide the people of Cornwall with a national day not unlike those observed in other nations