How important are are the use of sources in studying a history

Using sources are extremely important because we weren't alive at the time, so we won't know what happened unless we get our information from somewhere. Sources can include maps, writing, pictures, documents, or even a person if they were alive at the time, or they got there information from other sources.

just need the points

explanation:

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period