Publication dates matter
The year helps your reader see when the source entered the academic or professional conversation.
Dates help your reader judge the source.
Dates show when a source was published, and sometimes when you accessed it. They help your reader understand how current, relevant and traceable the evidence is.
Watch
See why publication dates and access dates are more than small formatting details.
Use the video for the quick explanation, then use the cards below to think about dates as part of the source trail.
The year helps your reader see when the source entered the academic or professional conversation.
Newer sources are often useful, but older sources may still be important if they are original, historical or still relevant.
Access dates can help when a webpage, guidance page or online report may be updated, moved or removed.
In this lesson
Dates help your reader place a source in time and decide how it fits with your argument or assignment.
In author-date referencing, the year in your citation should normally match the year shown in the full reference.
In fast-moving topics, recent evidence or guidance may matter. In other cases, an older source may still be central to the topic.
Some styles ask for access dates for online sources because webpages can change after you have used them.
How it works
A date is not just a number in brackets. It gives your reader important context about the source.
The publication date shows when the source became available.
The in-text citation should lead to the matching dated reference.
For some online sources, this records when you saw the page.
The reader can judge currency, relevance and traceability.
Simple example
The date in the citation should normally point to the same source in the reference list.
Quick checks
Most author-date references need a year, or a recognised way of showing that no date is available.
Check that the year in the in-text citation matches the year in the full reference.
Think about your topic, your assignment brief and whether newer evidence may be expected.
Before you submit
Use these checks when reviewing the dates in your citations and reference list.
If your citation says 2024, the full reference should normally show the same year for that source.
Older sources are not automatically wrong, but you should be able to explain why they are still relevant.
Follow your required style for webpages and other online sources that may change over time.
Transcript
Use the transcript if you prefer to read the explanation or revisit the key points after watching.
Dates matter because they help your reader understand when a source was published or accessed.
The publication date shows how current the source is.
This is important because knowledge, evidence, policy, law, guidance, and professional practice can change over time.
In many subjects, more recent sources are often preferred because they reflect newer evidence, current thinking, or updated guidance.
However, older sources can still be useful if they are original, important, historical, or still relevant to the topic.
For webpages, an access date may also be needed because online information can change or disappear.
Dates help your reader judge whether a source is current, relevant, and traceable.
Using Ref-Check
Ref-Check helps users review dates within references, including whether publication years are present and whether citation years appear to match the reference list.
A date helps your reader understand the source trail, not just whether the reference looks tidy.