How did new tools revolutionize agriculture during the Neolithic era? New tools saved early humans labor and time.
New tools made it possible to produce less food.
New tools allowed early humans to grow plants without water.
New tools helped early humans develop different seeds for planting.

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.

Why did the skill of writing disappear from mycenaean society