What was the primary component of early Greek anchors that moved away from reliance on a single massive stone?

Answer

Baskets of stones or large sacks filled with sand

The ancient Greeks utilized weight contained in more manageable forms, specifically baskets filled with stones or large sacks containing sand, as an alternative to hauling extremely heavy, unshaped stones.

What was the primary component of early Greek anchors that moved away from reliance on a single massive stone?
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