diff --git a/PLAN.md b/PLAN.md
index 12b1855..0f94cbd 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -52,11 +52,11 @@ Check off items as completed. Each phase builds on the previous.
 ## Phase 2: Event Infrastructure
 
 ### Step 2.1: Events Table Schema
-- [ ] Create migration for events, event_revisions, event_tombstones
-- [ ] Create migration for idempotency_nonces, event_animals tables
-- [ ] Create Pydantic models for Event, EventRevision, EventTombstone
-- [ ] Write tests for table constraints (ULID checks, JSON validation)
-- [ ] **Commit checkpoint**
+- [x] Create migration for events, event_revisions, event_tombstones
+- [x] Create migration for idempotency_nonces, event_animals tables
+- [x] Create Pydantic models for Event, EventRevision, EventTombstone
+- [x] Write tests for table constraints (ULID checks, JSON validation)
+- [x] **Commit checkpoint** (262739d)
 
 ### Step 2.2: Event Store Core
 - [ ] Create `events/store.py` with append_event, get_event, list_events