The document provides background information on depth studies for a Year 9 history course, focusing on Depth Study 1 titled "Making a Better World?". It discusses three possible electives within this depth study: the Industrial Revolution from 1750-1914, movement of peoples from 1750-1901, and progressive ideas and movements from 1750-1918. The document provides details on the content and key questions covered for each elective, with a particular focus on the progressive ideas and movements option. Images and summaries are included on several major technological developments and new ideas that emerged during this time period and contributed to changes globally and in Australia, such as the Industrial Revolution, photography, railways, vaccination, and Darwin's theory of evolution.