# Were the rows planned as one design or accreted over time? · Carnac alignments > Three answers have been proposed. Rows grew by additions over centuries along a common axis. leads, with evidence 1 for: supported by its tests. Two are… Source: https://mysteriesdept.com/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) Updated: 2026-10-26T11:57:00+00:00 --- **0** # Were the rows planned as one design or accreted over time? Asked 26 Oct 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·Part of [Why were the rows built?](https://mysteriesdept.com/mysteries/carnac-alignments/questions/QST0D69TBGJ4W2Z/why-were-the-rows-built)·3 answers·0·0 following **Most likely: rows grew by additions over centuries along a common axis** Ahead on the evidence, not yet confirmed. It needs two reviews to be accepted. ## Where it stands Three answers have been proposed. Rows grew by additions over centuries along a common axis. leads, with evidence 1 for: supported by its tests. Two are still possible. ## Why it matters An astronomical instrument implies a design laid out at once; a monument built over generations implies accretion⁠[[1]](https://mysteriesdept.com/sources/SRC0D69T4NT59NN/the-two-megalithic-lunar-observatories-at-carnac)⁠[[2]](https://mysteriesdept.com/sources/SRC0D69T3PJ4ZTB/le-plasker-in-plouharnel-fifth-millennium-cal-bc-a-newly). ## Answers 3 [**Rows grew by additions over centuries along a common axis.** ](https://mysteriesdept.com/mysteries/carnac-alignments/answers/ANS0D69THKW38D0/rows-grew-by-additions-over-centuries-along-a-common-axis) Supported by its tests Evidence: 1 for Most likely [**Each row system was laid out to a single plan in a short period.** ](https://mysteriesdept.com/mysteries/carnac-alignments/answers/ANS0D69TJ3G4E82/each-row-system-was-laid-out-to-a-single-plan-in-a-short) Failed a test; not refuted outright Evidence: 1 against Disputed [**None of these.** ](https://mysteriesdept.com/mysteries/carnac-alignments/answers/ANS0D69TJK40JJK/none-of-these) Not tested enough to call either way Evidence: none yet Still possible ## History 1. 1972[Thom & Thom puts forward: each row system was laid out to a single plan in a short period.](https://mysteriesdept.com/sources/SRC0D69T4660AKZ/the-carnac-alignments) 1. 2025[Blanchard et al. puts forward: rows grew by additions over centuries along a common axis.](https://mysteriesdept.com/sources/SRC0D69T3PJ4ZTB/le-plasker-in-plouharnel-fifth-millennium-cal-bc-a-newly) 1. 2025[Blanchard et al.: three subphases of standing stones and a final stone at Le Plasker span 4670 to 4250 cal BC.](https://mysteriesdept.com/sources/SRC0D69T3PJ4ZTB/le-plasker-in-plouharnel-fifth-millennium-cal-bc-a-newly)For: Rows grew by additions over centuries along a common axis. 1. 2025[Blanchard et al.: staggered dates within the Le Plasker rows.](https://mysteriesdept.com/sources/SRC0D69T3PJ4ZTB/le-plasker-in-plouharnel-fifth-millennium-cal-bc-a-newly)Against: Each row system was laid out to a single plan in a short period. 1. 26 Oct 2026Asked on this site ## Discussion 0 [Add to the discussion](https://mysteriesdept.com/signin?next=/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time%23discussion) Help with this question [ **Propose an answer** Something the evidence could support or rule out ] [ **Propose an answer** Something the evidence could support or rule out ](https://mysteriesdept.com/signin?next=/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time%23add-answer) [ **Add evidence** A result for or against an answer ] [ **Add evidence** A result for or against an answer ](https://mysteriesdept.com/signin?next=/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time%23add-evidence) [ **Ask a sub-question** A smaller question that would help settle this one ] [ **Ask a sub-question** A smaller question that would help settle this one ](https://mysteriesdept.com/signin?next=/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time%23add-question) [ **Add a source** A paper, archive record or image ] [ **Add a source** A paper, archive record or image ](https://mysteriesdept.com/signin?next=/mysteries/carnac-alignments/questions/QST0D69TBRC6PC1/were-the-rows-planned-as-one-design-or-accreted-over-time%23add-source) Where it fits Carnac alignments [**Why were the rows built?** ](https://mysteriesdept.com/mysteries/carnac-alignments/questions/QST0D69TBGJ4W2Z/why-were-the-rows-built)Key question · most likely the rows translate the region's natural granite outcrops and ridges into built form, recreating a rock… **Were the rows planned as one design or accreted over time?** You're here · rows grew by additions over centuries along a common axis [ Ask a question under this one ]