BBC News
By Johnny O Shea
This week Cornwall hosts the leaders of the world s largest so-called advanced economies at the G7 summit.
Cornwall has a rich heritage and, with millions of Cornish descendants spread around the world, there are enduring international connections.
It is a place that has had an important role in some key innovations, from the invention of steam power to the development of communications.
Here are some examples of how Cornwall is linked to the visiting countries.
Canada
image copyrightPerran Tremewan
image captionCanada received Cornish Cousin Jacks - or Cornishmen - many with mining expertise, and has modern connections with South Crofty mine