REMOVE

1. Physics
2. 1875?

WHAT

1. Astronomy (1)
2. Atoms (1)
3. Chemistry (1)
4. Mathematics (1)

WHERE

1. England: Greater Manchest … (3)
2. England: Devon (1)

WHO

1. Huggins, William, Sir, 18 … (1)
2. Spottiswoode, William, 18 … (1)
3. Tyndall, John, 1820-1893 (1)

WHEN

1. 19th Century CE (3)