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turnip and the Norfolk four-course rotation
'Turnip' Townshend introduced the turnip and the Norfolk four-course rotation of wheat‒turnips‒barley‒clover onto his farm. -
Bessemer converter
Henry Bessemer's Bessemer convert made steel. -
Mule spinning machine
Samuel Crompton's mule spinning machine -
Industrial Revolution
The historian Arnold Toynbee also created the idea that, in the years between 1780 and 1830, there was an Industrial Revolution. -
The rate of economic
The rate of economic growth between 1780 and 1830 was much slower than previously thought. -
New methods
Arthur Young wrote about the new methods. -
Battery
Alessandro Volta invented the battery. -
Atom
John Dalton discovered the atom. -
Tomas Telford's greatest achievement
Between 1803 and 1821, Thomas Telford alone built 1000 miles of road, including 1000 bridges. His greatest achievement was the London‒Holyhead road (1815‒1826). -
Factory Act
The government passed the Factory Act making two hours of education a day compulsory for children working in factories. The government also granted money to charities for schools for the first time. -
Photography
Henry Talbot invented photography. -
Ragged Schools Union
The Ragged Schools Union was set up to give schooling to very poor children. -
The visit of Miss Mary Morstan
Miss Morstan visits Sherlock Holmes and shows him the pearls and a letter. -
The meeting with Thaddeus Sholto
They meet Thaddeus Sholto and he tells them about his father and the treasure. -
With Thaddeus to Pondichery Lodge
They take a cab with Thaddeus Sholto to Pondicherry Lodge. -
Arriving to Pondichery Lodge
They arrive at Pondicherry Lodge and find Bartholomew Sholto dead. -
The foot prints
Holmes and Watson find footprints and marks in the room made by someone with a wooden leg. -
Examining the secret room
Sherlock Holmes uses his magnifying glass to examine the secret room. -
Acussing Thaddeus Sholto
Inspector Lestrade arrests Thaddeus Sholto for the murder of his brother. -
Toby
Watson goes to Lambeth and borrows a dog called Toby. -
Sherlock Holmes and Watson followed Toby
Toby follows the smell of the tar and leads Holmes and Watson to a house next to the river. -
Trying to find the Aurora.
Holmes tries to find Mordecai Smith and the Aurora. -
Chasing the Aurora
Inspector Lestrade, Holmes and Watson chase the Aurora in a police boat. They kill the native and catch the man with the wooden leg. -
Jonathan Small explain everything
Jonathan Small tells the story of the Agra Treasure and the Sign of Four. -
Bicycle
Kirkpatrick Macmillan invented a bicycle.