diff --git a/docs/JOURNAL.md b/docs/JOURNAL.md
index 5b4849b..6010734 100644
--- a/docs/JOURNAL.md
+++ b/docs/JOURNAL.md
@@ -12430,3 +12430,110 @@ Carried-debt status (after this iter):
 Milestone-22 carried debt + the queued tipping-point observation
 are now both closed. Next milestone targets remain orchestrator's
 call.
+
+## 2026-05-10 — Iteration design-md-consolidation 1: history-anchor sweep
+
+First iteration of the milestone defined in
+`docs/specs/2026-05-10-design-md-consolidation.md`. Sweep 1 closes
+the "history anchors in DESIGN.md" item: every iter tag (`Iter Nx`,
+bare `Nx`, `pre-Nx`, `Nx sketch`, `21'g`), family tag (`Family 20`),
+date anchor (`2026-MM-DD`), status marker (`**Status: …**`), and
+historical bench data-point that anchored the document to a specific
+moment is removed or condensed. DESIGN.md now reads as a state-only
+document for these classes of anchors; the *narratives* of how
+decisions changed (Decision 9's three-frame story, Decision 11's
+mono-vs-vdisp correction, Decision 7's REVERTED body, the "Migration
+plan" in Decision 10) remain in their narrative form this iter and
+are condensed in sweep 2.
+
+Sites stripped (counts at iter start, full closure on commit):
+
+- Iter tags (`Iter [0-9]+[a-z]?(\.[0-9]+)?` strict): 93 sites (Task 4).
+- Bare iter-id residues (`pre-Nx`, `Nx sketch`, plain `Nx` like `14d`,
+  `15a`, `20f`, `22a`, `22b`, `22c`, `18g.1`, `16b.2`): 4 + ~16 sites
+  (Task 4 fixups).
+- Family tags: 4 sites (Task 2).
+- Date anchors: 13 sites (Task 3).
+- Status markers (`**Status: …**`): 4 sites (Task 1).
+- Bench data-points: 12 sites — 5 KEPT (the 1.3× retirement target
+  and ±15% tolerance, which are policy contracts), 7 REMOVED or
+  CONDENSED (Task 5).
+
+Specific anchor examples discarded (representative):
+
+- Decision 6 opener: `**Status: shipped.** Form (A) was chosen in
+  Iter 14b and implemented as` → `Form (A) is implemented as`.
+- Decision 9 opener: `**Status: half-retirement as of 2026-05-09.**
+  Originally framed (2026-05-07) as "transitional Boehm…"` →
+  `Originally framed as "transitional Boehm…"` (the
+  narrative-of-changes paragraph is sweep-2 territory).
+- Decision 10 opener: `**Committed 2026-05-08, after the GC bench
+  showed Boehm contributing ~60% of runtime…` → `**The GC bench
+  showed Boehm contributing a substantial fraction of runtime
+  (bench notes in JOURNAL).`
+- Decision 11 opener: `**Committed 2026-05-09 (Iter 22a), as the
+  design pass that gates 22b implementer work.**` → `**The design
+  pass that gates implementer work.**`
+
+Deliberate exception:
+`docs/specs/2026-05-09-22-typeclasses.md` (line 1747) — date-prefixed
+spec filename, kept verbatim because the on-disk file uses that
+prefix and renaming would lose git history. The composite
+acceptance grep masks paths beginning with `docs/`.
+
+Acceptance:
+
+- composite grep
+  `grep -nE 'Iter [0-9]+[a-z]?(\.[0-9]+)?|Family [0-9]+|^[^/]*2026-[0-9]{2}-[0-9]{2}|\*\*Status: |pre-[0-9]+[a-z]?|[0-9]+[a-z]? sketch|21.g' docs/DESIGN.md`
+  returns empty.
+- bench-data residue grep returns only 5 KEEP-class lines (1.3× and
+  ±15%).
+- `cargo test --workspace` 0 FAILED across all 23 test binaries.
+- `bench/check.py` 0 regressed (63 metrics, 2 improved beyond
+  tolerance, 61 stable); `bench/compile_check.py` 0 regressed (24
+  metrics, 24 stable).
+- DESIGN.md size: 2262 → 2253 lines (small net reduction; sweeps 2-4
+  expected to reduce further).
+
+The 1.3× Boehm-retirement target and the ±15% closure-band tolerance
+are KEPT verbatim — they are policy contracts, not historical
+measurements. The historical bench data-points that grounded those
+targets (60% allocate-path overhead; 2.8× malloc slowdown; 4.14×
+rc/bump on closure-chain; 3.31x / 4.00x mono-vs-vdisp; 1.000x Zen 3
+saturated-predictor anchor) are removed from DESIGN.md; their values
+remain in JOURNAL bench entries (`bench/run.sh` baseline records,
+mono-dispatch micro-bench entry).
+
+Tasks (commit subjects):
+
+- design-md-consolidation 1.1: drop **Status:** markers from DESIGN.md
+- design-md-consolidation 1.2: drop Family-N tags from DESIGN.md
+- design-md-consolidation 1.2 fixup: trim trailing whitespace on DESIGN.md:33
+- design-md-consolidation 1.3: drop date anchors from DESIGN.md
+- design-md-consolidation 1.3 fixup: repair two date-strip quality issues
+- design-md-consolidation 1.4: drop Iter-N tags from DESIGN.md
+- design-md-consolidation 1.4 fixup: strip non-Iter-N iter anchors (14b sketch, pre-19b, pre-22a)
+- design-md-consolidation 1.4 fixup: strip bare iter-id references (~16 sites)
+- design-md-consolidation 1.4 nit: deduplicate 'fixture' word in user-class parenthetical
+- design-md-consolidation 1.5: condense historical bench data-points in DESIGN.md
+- design-md-consolidation 1.5 fixup: untangle line 863 run-on, deduplicate JOURNAL attribution, idiomatic 'larger still'
+
+Carried into sweep 2: Decision 7's body (still present, awaiting
+removal), Decision 9's "Originally framed … then re-framed …
+revision flips" narrative, Decision 10's "Migration plan", Decision
+11's "Why mono, not virtual dispatch (the empirically-grounded
+version)" correction history, and the "future iter may"
+speculations.
+
+Process note: the plan's strict grep `Iter [0-9]+[a-z]?(\.[0-9]+)?`
+caught 93 of the iter anchors but missed 20 bare-iter-id residues
+(`pre-19b`, `14b sketch`, `14d`, `14e`, `15a`, `16b.2`, `18g.1`,
+`20f`, `22a`, `22b`, `22b.4b`, `22c`). The implementer correctly
+flagged these as "known debt" within the strict-grep boundary; the
+orchestrator widened scope post-implementer-DONE because the spec's
+intent (`all iter tags removed`) was clearly broader than the
+plan's regex. Lesson for sweep 2-4 plan-writing: the acceptance
+grep must match the spec intent, not just one specific anchor
+form. Future plans for sweeps 2-4 will fold all anchor variants
+(literal Iter-N, bare Nx, prefixed `pre-Nx`, possessive `Nx's`,
+suffix `Nx sketch`, etc.) into one composite grep at plan-time.
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 62082c9..23817c5 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -39,8 +39,7 @@ work progresses.
   data-model hardening, workflow / cross-reference cleanup).
   - context: `docs/specs/2026-05-10-design-md-consolidation.md`
   - sub-entries:
-    - [~] Sweep 1 — remove history anchors
-      (`docs/plans/2026-05-10-design-md-consolidation-1-history-anchors.md`)
+    - [x] Sweep 1 — remove history anchors
     - [ ] Sweep 2 — REVERTED + migration plans out
     - [ ] Sweep 3 — schema SoT inversion + data-model hardening
     - [ ] Sweep 4 — workflow / cross-reference cleanup