Old Things, New Things — How We Know About the Past
PrimaryClues, artifacts and museums · thinking like an archaeologist
Theory Key ideas
Nobody has a time machine — so how do we know anything happened before we were born? We use evidence: real objects, pictures and writing left behind by people who lived before us. An old object from the past is called an artifact — a coin, a pot, a tool, a toy. A scientist who digs up and studies artifacts is called an archaeologist.
Not everything survives. Stone, pottery and metal can last thousands of years buried in the ground. Cloth, wood and paper usually rot away much faster, unless they are kept somewhere very dry, very cold or very careful, like a museum.
Survives for thousands of years
- Stone tools and carvings
- Pottery — fired clay pots and shards
- Metal — coins, blades, buckles
- Lasts even when buried in soil
Rots away quickly
- Cloth and clothing
- Wood and basketry
- Paper and parchment
- Survives only if kept very dry, cold or protected
Explanation Why it matters
Studying the past is a bit like being a detective. A detective doesn't see the crime happen — they look at clues and figure out what must have happened. A historian doesn't see the past happen — they look at artifacts, old photos and old writing, and figure out what life must have been like.
Historians are careful to say what the evidence proves and what is just their best guess (historians call a careful guess based on evidence an inference). Good historians never pretend a guess is a fact.
Practical Investigate an artifact
A dented metal box shaped like a small dome-topped suitcase, with a wire handle and a faded painted picture of a train on the side. Inside, a name is scratched into the metal: "T. Reyes."
Look: It's metal, dented, hand-painted — not printed. Ask: Who used it? When? Guess (with evidence): "T. Reyes" was probably a child who carried lunch to school; metal lunch pails with painted pictures like this were common many decades ago, before plastic lunchboxes were invented. Be careful: we can't know T. Reyes's exact age or what was inside — that would be a guess without enough evidence.
Your turn: Pick any old object at home or in a museum. Write down three things you can see, and one careful guess you can make from those clues.
Q&A Test yourself
What is an artifact?
Any object made or used by people in the past that survives to today — a coin, a pot, a tool, a toy, a piece of jewellery.
What does an archaeologist do?
An archaeologist carefully digs up and studies artifacts and old buildings to learn how people lived long ago.
Why do stone objects survive longer than paper or cloth ones?
Stone and pottery don't rot, so they can last thousands of years even buried in soil. Paper and cloth are made of materials that decay, insects eat, and water damages, so they only survive if kept somewhere protected, like a dry cave or a museum.
What is the difference between a fact and a guess (inference) in history?
A fact is something the evidence directly shows — "this pail is made of metal." A guess, or inference, is a careful idea based on the evidence but not proven for certain — "this pail probably belonged to a schoolchild." Good historians always say which is which.
How the ideas connect
Every key idea in this chapter, branching from the core concept — use it to see the whole picture at a glance.
The key facts, visualised
Worked problems, step by step
Follow each solution line by line, then try to reproduce it on paper before moving on.
Example 1How would you investigate a mystery object from a museum?
- Look closely at what it is made of
- Guess what it might have been used for
- Compare it to things we use today
Example 2Why is an old coin a useful clue about the past?
- A coin often shows a date and a ruler's face
- It tells us about money and leaders
Now you try
Work each one out first, then tap to reveal the worked answer.