When did free african americans hold their first convention?

What’s the negative consequences of telegraph ? explain in your own words

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife

Plz which of the following elements is not typical of an advanced society. a. cities b. science c. industries d. a nomadic lifestyle