diff --git a/src/main/java/dev/sillyangel/calc/Calculator.java b/src/main/java/dev/sillyangel/calc/Calculator.java
index 6800ecb..13c98ac 100644
--- a/src/main/java/dev/sillyangel/calc/Calculator.java
+++ b/src/main/java/dev/sillyangel/calc/Calculator.java
@@ -23,7 +23,6 @@ import com.formdev.flatlaf.extras.FlatAnimatedLafChange;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.util.SystemInfo;
 import dev.sillyangel.calc.themes.*;
-import dev.sillyangel.calc.CalculatorModes;
 
 public class Calculator extends JFrame implements KeyListener {
 	
@@ -46,7 +45,8 @@ public class Calculator extends JFrame implements KeyListener {
 	protected double result;
 	private String[] Modes = new String[] {"Standard", "Scientific", "Data calculation"};
 	private JComboBox<String> modeselect;
-	
+	private final CalculatorHistory history;
+
 	public static final String getVersion() {
 		return APPILCATION_VERSION;
 	}
@@ -85,6 +85,8 @@ public class Calculator extends JFrame implements KeyListener {
 		});
 	}
 	public Calculator() {
+		history = new CalculatorHistory();
+
 		setBackground(new Color(32, 32, 32));
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		//setIconImage(Toolkit.getDefaultToolkit().getImage(Calculator.class.getResource("/images/appIcon.png")));