History of question #491
| When | Who | Action | New State |
|---|---|---|---|
| John Ammerman | Comment | Open | |
| magilus | Answer | Open | |
| John Ammerman | Comment | Open | |
| John Ammerman | Comment | Open | |
| John Ammerman | Comment | Open | |
| John Ammerman | Comment | Open | |
| Ralph Green | Answer | Open | |
| Ralph Green | Answer | Open | |
| John Ammerman | Comment | Open | |
| Ralph Green | Answer | Open |
