diff --git a/Evergreen/AppDelegate.swift b/Evergreen/AppDelegate.swift
index 412a177fb..3a9dbbeb1 100644
--- a/Evergreen/AppDelegate.swift
+++ b/Evergreen/AppDelegate.swift
@@ -86,11 +86,11 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserInterfaceValidations,
 		addFolderWindowController!.runSheetOnWindow(window)
 	}
 
-	func markOlderArticlesAsRead(with window: NSWindow) {
-
-		panicButtonWindowController = PanicButtonWindowController()
-		panicButtonWindowController!.runSheetOnWindow(window)
-	}
+//	func markOlderArticlesAsRead(with window: NSWindow) {
+//
+//		panicButtonWindowController = PanicButtonWindowController()
+//		panicButtonWindowController!.runSheetOnWindow(window)
+//	}
 
 	func markEverywhereAsRead(with window: NSWindow) {
 
@@ -431,11 +431,11 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserInterfaceValidations,
 		Browser.open("https://ranchero.com/evergreen/help/1.0/", inBackground: false)
 	}
 
-	@IBAction func markOlderArticlesAsRead(_ sender: Any?) {
-
-		createAndShowMainWindow()
-		markOlderArticlesAsRead(with: mainWindowController!.window!)
-	}
+//	@IBAction func markOlderArticlesAsRead(_ sender: Any?) {
+//
+//		createAndShowMainWindow()
+//		markOlderArticlesAsRead(with: mainWindowController!.window!)
+//	}
 
 	@IBAction func markEverywhereAsRead(_ sender: Any?) {
 
diff --git a/Evergreen/MainWindow/MainWindowController.swift b/Evergreen/MainWindow/MainWindowController.swift
index f77b8427a..def09d421 100644
--- a/Evergreen/MainWindow/MainWindowController.swift
+++ b/Evergreen/MainWindow/MainWindowController.swift
@@ -239,7 +239,8 @@ class MainWindowController : NSWindowController, NSUserInterfaceValidations {
 
 	@IBAction func markOlderArticlesAsRead(_ sender: Any?) {
 
-		appDelegate.markOlderArticlesAsRead(with: window!)
+		timelineViewController?.markOlderArticlesAsRead(sender)
+//		appDelegate.markOlderArticlesAsRead(with: window!)
 	}
 
 	@IBAction func markEverywhereAsRead(_ sender: Any?) {
diff --git a/Evergreen/MainWindow/Timeline/TimelineViewController.swift b/Evergreen/MainWindow/Timeline/TimelineViewController.swift
index 5676c22a5..5abf6c1b6 100644
--- a/Evergreen/MainWindow/Timeline/TimelineViewController.swift
+++ b/Evergreen/MainWindow/Timeline/TimelineViewController.swift
@@ -179,6 +179,34 @@ class TimelineViewController: NSViewController, UndoableCommandRunner {
 		}
 		runCommand(markUnreadCommand)
 	}
+
+	@IBAction func markOlderArticlesAsRead(_ sender: Any?) {
+
+		// Mark articles the same age or older than the selected article(s) as read.
+
+		var cutoffDate: Date? = nil
+		for article in selectedArticles {
+			if cutoffDate == nil {
+				cutoffDate = article.logicalDatePublished
+			}
+			else if cutoffDate! < article.logicalDatePublished {
+				cutoffDate = article.logicalDatePublished
+			}
+		}
+		if cutoffDate == nil {
+			return
+		}
+
+		let articlesToMark = articles.filter { $0.logicalDatePublished <= cutoffDate! }
+		if articlesToMark.isEmpty {
+			return
+		}
+
+		guard let undoManager = undoManager, let markReadCommand = MarkReadOrUnreadCommand(initialArticles: articlesToMark, markingRead: true, undoManager: undoManager) else {
+			return
+		}
+		runCommand(markReadCommand)
+	}
 	
 	// MARK: - Navigation