Why does the date of the source matter?

The date of a source is important because it can provide context for the information being presented. It can help determine the relevance and reliability of the information, as newer sources are typically more up-to-date and accurate. Additionally, the date can also indicate whether the information is still current and applicable to the topic being researched. In some cases, the date of a source may also reveal any potential biases or changes in the author's perspective over time.