The Second President of the Royal Horticultural Society
Today, in 1750, the botanist Pehr Kalm visited Niagara Falls.
Niagara was a natural attraction for botanists like Kalm, who studied under Carl Linnaeus.
(It was actually Linnaeus who came up with the idea to send trained botanists to Niagara.)
There are no records of the plants that Kalm collected that day. However, botanists suspect that Kalm's Lobelia and Kalm's Saint John's Wort were collected there; both would have been named for him by Carl Linnaeus.