Former Speaker of the House Tip O'Neill famously said, "All politics is local." He might well have said that "all history is local," too. After all, everything happened somewhere. Brookline, to be sure, has seen its share of history. Events and issues of national importance—from independence to immigration, from abolition to abortion, from modern medical practices to modern presidential politics—have played out in large and small ways here in Brookline. But if everything happened somewhere, it's also true that something happened everywhere. And the story of Brookline is worth telling not just…