What is the evidence?

observation

Settlement distribution and irrigation practices changed with channel movement and institutional reorganization across the delta.

Inspect the sources →
Review and provenance

Specialist reviewer: not recorded. Review date: not recorded.

Dataset workflow: proposed. This is separate from specialist review.

Confidence describes the stated assessment; it does not certify expert approval. How review works.

Chronology

Dating intervals may describe uncertainty or phases; their width alone does not establish event duration.

Preferred assertion

1500 BCE–1000 BCE

Precision: range

moderate

Working range preserves source uncertainty and should be refined with site-level dates.

Interpretation and caveats

Some zones contracted or relocated while others continued or emerged; the evidence does not support one instantaneous oasis abandonment.

Event context

Classification

Event type: irrigation and settlement reorganization

Evidence layer: archaeological

Timeline role: regional core

Why it matters to the timeline

This is the core system-level event for irrigation, oasis contraction and reorganization in Turkmenistan.

Research notes

  • Provides the landscape reconstruction and dating cautions. Role: contextualizes. Locator: Canal chronology, palaeochannels and settlement synthesis.
  • Provides the earlier Soviet research framework. Role: provides historiography. Locator: Lower Murghab Bronze Age sequence.

Evidence and sources

Where to go next

Referenced records