'Google Trends
This is the Google Trends graph for the search term "irish". Note the big peak every year on St. Patrick's day.
Update 2019-09-14: The above images do not render anymore. So here is the latest:
This is the Google Trends graph for the search term "irish". Note the big peak every year on St. Patrick's day.
Update 2019-09-14: The above images do not render anymore. So here is the latest: