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--- a/README.md
+++ b/README.md
@@ -3,60 +3,60 @@ Programming Language Timeline
 
 History of programming languages
 
-## 1972 C
+## `1972` C
 
 <img src="./author/Dennis_Ritchie_2011.jpg" width="180" alt="Dennis Ritchie" />
 
 C is a general-purpose programming language. It was created in the 1970s by Dennis Ritchie and remains very widely used and influential.
 
-## 1983 Objective-C
+## `1983` Objective-C
 
 Brad Cox and Tom Love created Objective-C as the main language used for writing Apple software
 
-## 1986 Erlang
+## `1986` Erlang
 
 [Erlang](https://www.erlang.org/) is a general-purpose, concurrent, functional high-level programming language, and a garbage-collected runtime system.
 
-## 1983 C++
+## `1983` C++
 
 Bjarne Stroustrup created C++, which is an extension of the C programming language. This is one of the most used languages in the world
 
-## 1991 Python
+## `1991` Python
 
 Guido Van Rossum developed Python, which is a simplified computer language that is easy to read
 
-## 1991 Visual Basic
+## `1991` Visual Basic
 
 Microsoft developed Visual Basic, which enabled programmers to select and change specific chunks of code with a drag-and-drop process
 
-## 1995 JAVA
+## `1995` JAVA
 
 Sun Microsystems developed Java, originally intended to be used with hand-held devices
 
-## 1995 PHP
+## `1995` PHP
 
 Rasmus Lerdorf developed PHP, mainly for Web development. PHP continues to be widely used in Web development today
 
-## 1995 Ruby
+## `1995` Ruby
 
 Yukihiro Matsumoto developed Ruby as an all-purpose programming language, ideal for many programming jobs. Ruby is widely used in the development of Web applications
 
-## 1995 JavaScript
+## `1995` JavaScript
 
 Brendan Eich developed JavaScript to enhance Web browser interactions
 
-## 2000 C#
+## `2000` C#
 
 Microsoft developed C# as a combination of C++ and Visual Basic. C# is similar to Java in some ways
 
-## 2003 Scala
+## `2003` Scala
 
 Martin Odersky created Scala as a programing language that combines aspects of functional programming
 
-## 2009 GO
+## `2009` GO
 
 Google developed Go to solve issues that commonly occur with large software systems
 
-## 2014 Swift
+## `2014` Swift
 
 Apple developed Swift to replace C, C++, and Objective-C
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