False
They had been used before that. they were simply intergrated to the computer programming system after along period. the power symbol was developed in ww2.
The proclamation of 1763 forbade colonists from crossing the appalachian mountains, because Great Britain decided that if the colonists took too much land, the Indians would attack, and Britain did not want to be at war with the Indians, especially after the costly fight with France, which left their coffers (money) empty
hope this helps
<span>The character and quality of life changed dramatically in Nebraska during the 1920s….The effects of technological change were most obvious in the cities. By the 1920s most small cities had paved streets, municipal electricity and water systems, telephone systems, streetlights, and sewage systems… The homes of most urban Nebraskans had running water and indoor plumbing…Electricity appeared in homes on a grand scale during the 1920s, at first for illumination but by the end of the decade for washing or sewing machines, irons, toasters, mixers, and vacuum cleaners…Refrigerators began to replace iceboxes for short-term food preservation, and electric fans began to cool hot summer days.
i really hope i helped you out in some type of way :)))</span>
