It was a stellar day in the history of Canadian-Americans on this date in 1989 with the arrival of a newly sworn-in US President in Ottawa.  President George H.W. Bush sent a clear signal of the importance he would place on Canada-US relations by choosing Canada as the site of his first foreign visit.Already having established a friendship with Prime Minister Brian Mulroney during his service as Ronald Reagan’s Vice President, the two leaders would go on to enjoy the closest-ever partnership between a Canadian Prime Minister and a U.S. Chief Executive. Over the next four years Bush would sign the Canada-US acid rain treaty, craft the NAFTA with Mulroney, and seek the advice of our nation’s PM like no President before him.caption id="attachment_607243" align="alignleft" width="546" Signing of the Acid Rain Treaty, March, 1991/captionArthur Milnes is an accomplished public historian and award-winning journalist.  He was research assistant on The Rt. Hon. Brian Mulroney’s best-selling Memoirs and also served as a speechwriter to then-Prime Minister Stephen Harper and as a Fellow of the Queen’s Centre for the Study of Democracy under the leadership of Tom Axworthy.  A resident of Kingston, Ontario, Milnes serves as the in-house historian at the 175 year-old Frontenac Club Hotel.