Study guides /

Archaeological inference: date the context, not just the object

An object’s manufacture date is not the date of its deposit. Reconstruct the relationships first, then ask what a secure association actually constrains.

Course topic: Archaeology

Study route and exercise: University Reading List editorial project. How we curate · Sources checked:

Scope and responsibility

All contexts, coins and records below are invented paper data. No excavation, collection, sampling of a site or handling of human remains is required.

Choose your starting point

Begin with an open activity route

Use Paskey/Cisneros for concise concepts, formation processes and dating tasks.

Build a broad methods framework

Use the ninth-edition Archaeology for the connections among questions, evidence and techniques.

Examine interpretation

Use Reading the Past after basic methods to compare what different theoretical commitments make visible.

Compare the three books

Digging into Archaeology: A Brief OER Introduction to Archaeology with Activities

Amanda Wolcott Paskey; AnnMarie Beasley Cisneros · 2020

Free concepts and activities

Choose it when
You need short explanations and structured practice.
Use another route when
You need a complete technical field manual or an advanced theory monograph.
Selected reading
Read chapters 4–5 on formation/preservation, 8 on dating and 16 on legal/ethical issues.
Limits and trade-offs
Survival, recovery and association mediate the record; activity data are not the past itself.

Try before choosing

Draw the supplied context order before consulting the coin dates.

Check your work: Cuts and fills are events in the sequence, not dates inferred from depth alone.

Official free reading ↗

Book record and access options →

Archaeology: Theories, Methods and Practice

Colin Renfrew; Paul G. Bahn; Elizabeth DeMarrais · Edition: 9 · 2024

Broad methodological course

Choose it when
You need an integrated survey beyond dating.
Use another route when
Your immediate need is only a compact introductory worksheet.
Selected reading
Use the selected ninth edition’s dating, formation and interpretation discussions, matching the contents.
Limits and trade-offs
Breadth requires selection; learning a technique does not remove uncertainty in its archaeological context.

Try before choosing

Make separate columns for observation, method and conclusion in one dating claim.

Check your work: An object’s date supports a context only through the stated association.

Book record and access options →

Reading the Past: Current Approaches to Interpretation in Archaeology

Ian Hodder; Scott Hutson · Edition: 3 · 2003

Interpretive theory

Choose it when
You can follow basic archaeological evidence and want to examine meaning, agency and history.
Use another route when
You need first definitions of stratigraphy or excavation terminology.
Selected reading
Read the third edition’s discussions of contextual interpretation, agency and history alongside a methods text.
Limits and trade-offs
Multiple perspectives do not make every story equally compatible with the evidence.

Try before choosing

Propose two depositional histories consistent with the follow-up packet.

Check your work: Both must obey every cut/fill/seal relation and differ on D’s date.

Book record and access options →

Check your preparation

What is a terminus post quem?

A lower bound: deposition cannot precede the manufacture of a securely associated object. It need not happen immediately afterwards.

Does a lower deposit always contain older objects?

No. Residual objects and later intrusion complicate associations. The event relationships and the object’s context must be specified.

Does an open text authorize field collection?

No. Reading and paper exercises do not grant access, excavation or collection rights.

Six steps with a concrete output

These are your own study marks, not an assessment. They are not sent to this site.

  1. Draw the events

    Selected reading: Open text: chapter 8.

    Make this: Write U<D<K<F<S from the supplied relations.

    Check your work: Include the cutting event K separately from its fill F.

  2. Audit association

    Selected reading: Open text: formation processes.

    Make this: Record which object belongs to which secure context.

    Check your work: A bag label is not unchallengeable provenance.

  3. Add absolute bounds

    Selected reading: Methods text: dating.

    Make this: Translate the two mint dates and seal date into inequalities.

    Check your work: Do not turn a lower bound into an exact date.

  4. Test an overclaim

    Selected reading: Reading the Past with methods.

    Make this: Evaluate “D must predate 180”.

    Check your work: Supply a counterexample that respects the full order.

  5. Change the attribution

    Selected reading: Open text: formation.

    Make this: Remove the D coin when its bag assignment is corrected.

    Check your work: Only constraints depending on that association disappear.

  6. Write a reconstruction

    Selected reading: All three routes.

    Make this: Give an admissible chronology and the remaining range.

    Check your work: One possible sequence is not the unique history.

Worked exercise

A cut, a fill and two coins

Invented contexts: floor U is beneath deposit D; pit cut K cuts D; F fills K; intact seal S covers D and F. A reliable fictional construction record dates S to year 200. A securely incorporated coin in D was manufactured no earlier than 140; a securely incorporated coin in F no earlier than 180. Give the event order and date bounds. Does D necessarily predate 180?

Assumptions

Relations are correctly observed; coins are not later intrusions, dates share one calendar, and cuts/fills precede the seal. Manufacture gives a lower bound, not a deposition date. No other absolute dates are supplied.

  1. The supplied relationships give U<D<K<F<S, with S=200. This is an event order; depth alone is not doing the inference.
  2. Secure manufacture dates give D≥140 and F≥180, while both deposits predate 200. The date of D is not fixed to 140, nor F to 180.
  3. D need not predate 180: D=185, K=190, F=195 and S=200 satisfy all constraints. For example U=100 also fits. A different admissible sequence can place D=150.

Answer and interpretation

D lies from 140 up to, but not including, 200; F lies from 180 up to 200, with D<K<F. No exact deposition dates or D<180 conclusion follow.

Test the result

Check the direction of each inequality. F≥180 together with D<F does not imply D<180.

Change an assumption

The supposed D coin came from the pit fill

A bagging correction establishes that the 140-or-later coin was recovered from F, not D. The 180-or-later F coin, every context relationship and S=200 remain secure. There is now no securely associated dated object in D.

  1. Delete D≥140 because its association premise failed. Both coins now constrain F, and the stronger surviving lower bound remains F≥180.
  2. The order U<D<K<F<S=200 remains. It puts D before the seal, but supplies no absolute lower bound for D.
  3. D=100, K=185, F=190 and D=190, K=193, F=195 are both possible, with an earlier U in each. The former refutes a carried-over 140 bound; the latter refutes D<180.

Answer and interpretation

D has lost its 140 lower bound. F keeps the 180 bound and all relative relations remain. An object reassignment changes only the inferences that depended on it.

Test the result

Do not say that D has become “undatable” in every sense: its relative order and upper bound remain. No actual site chronology is asserted.

Common mistakes

Object age becomes deposit age

Allow time between manufacture, use and deposition.

Later minimum becomes earlier maximum

Check inequality logic before drawing a timeline.

Interpretation ignores formation

A plausible story still must explain how evidence entered its recorded context.

Before moving on

  • Choose books by introductory practice, methodological breadth and interpretive need.
  • Build relative order before adding secure absolute bounds.
  • Revise only the constraints affected by an association change.

Sources and edition checks

Sources checked:

These are proposed study activities, not official course assignments or a claim that every book has been read cover to cover.

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