Dashed left edge = started before June 1887 ·
Dashed right edge = ongoing beyond June 1887
Events in June 1887 3
1887Reinsurance Treaty signed between Germany and RussiaSecret pact aims to preserve peace between the two empiresChancellor Otto von Bismarck negotiates the Reinsurance Treaty, a secret agreement between the German and Russian empires pledging neutrality if either is attacked by a third power. The treaty is designed to prevent Russia from allying with France against Germany. It lapses in 1890 after Bismarck's dismissal, and is not renewed.
1887Queen Victoria celebrates her Golden JubileeFifty years marking her accession to the British throneQueen Victoria marks fifty years since her accession with a Golden Jubilee, attending a thanksgiving service at Westminster Abbey attended by representatives from across the British Empire. Celebrations include a state banquet with kings and princes from around the world. The jubilee showcases Britain's imperial power at its height.
1887Rocky Mountains Park Act creates Canada's first national parkBanff becomes a protected reserveThe Canadian Parliament passes the Rocky Mountains Park Act, formally establishing Banff as Canada's first national park around hot springs discovered in the Rockies. The reserve, initially a small area, expands substantially in later decades. It becomes a model for national park systems elsewhere in the country.