Opening Gambit

The first question relates to an event on this day, and the remainder follow a theme created by the first?

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One

In 1578, King Henry III of France (pictured) laid the first stone of a bridge on the River Seine, which is now the oldest of all the bridges in Paris. The bridge is in two separate spans with an island between them. What is the name of the bridge, and what is the island? 

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Two

In what capital city did the world’s first underground passenger railway open in 1863? 

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Three

The Brooklyn Bridge, New York, opened in May 1883. What body of water does it cross, and what two islands does it join?

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Four

Paris’s largest public park was opened to the public by Louis XV. What park is it?

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Five

In what decade was London’s Royal Albert Hall opened, and who opened it?

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Good luck! I’ll post the answers later.

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