Grade 8 History · 68-post course reader
HISTORY’S GROUP CHAT
Chapter 1: How Historians Think
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Lesson 1
The Past and History
John A. Macdonald created HISTORY'S GROUP CHAT and made himself admin.
John A. Macdonald renamed the chat MY ACHIEVEMENTS.
Historian uploaded an Uruk-period clay tablet.

Historian uploaded an old letter.
Robert Harris's The Fathers of Confederation was shared to the chat.
Lesson 2
Historical Significance
Historian uploaded: household note, 1880.
Historian uploaded: Indian Act, 1876. Decorative reactions are off.


Residential schools separated Indigenous children from families, languages and cultures. Many experienced neglect, abuse, illness and death.
Historian shared a House of Commons quotation from 9 May 1883.
Lesson 3
Cause, Consequence and Perspective
Before 1914: militarism, imperial competition, nationalism and alliance systems increased tension across Europe.
28 June 1914: Archduke Franz Ferdinand was assassinated in Sarajevo.
John A. Macdonald uploaded a Canadian Pacific Railway map.

Student shared a route map.
Historian uploaded an 1875 government treaty map.

Historian uploaded an archival photograph of Chinese railway workers in British Columbia.

Lesson 4
Using Evidence at Vimy Ridge
Investigation opened: Was the Canadian assault at Vimy Ridge carefully prepared?
Student shared a map of Vimy Ridge near Arras, France.
5:30 a.m., 9 April 1917: all four Canadian Corps divisions attacked together for the first time.
Historian shared records of maps, models, rehearsals, tunnels and plans distributed before the assault.
Historian uploaded an artillery timetable for the creeping barrage.
Canadian War Museum record: 3,598 killed and roughly 7,000 wounded at Vimy Ridge.
Five files added: trench map, aerial photograph, relief map, field message, letter home.
Historian uploaded a 1917 Vimy Ridge barrage map.

Historian shared a Canadian War Museum catalogue record for a pre-attack aerial mosaic.
Verified archival sourceOpen the museum record below
Historian shared a surviving layered relief map and Frederick George Scott's later testimony about model study.
Verified archival sourceOpen the museum record below
Thain MacDowell uploaded his 8:00 a.m. field message from 9 April 1917.

Alvin Kines joined the chat and uploaded his letter home, dated 12 April 1917.
Verified archival sourceOpen the museum record below
Chapter conclusion.
Chapter 1 complete
The evidence can carry the claim.
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