The Pittsburgh Steelers have one of the most iconic logos in sports history, particularly in relation to the Pittsburgh Steelers Primary logo. The logo, which features three hypocycloids resembling diamonds set inside a circle, has been around since 1962 and is widely recognized as a symbol of excellence for the team. It was designed by the former art director at Steelmark Inc., Arthur E. Rooney Sr., who was also an owner of the team at that time.

The original design featured yellow stars on each side with blue outlining them to create a starburst effect and black lettering spelling out “Steelers” in all caps across the center portion of the logo; however, this design has changed over time due to various reasons such as changes in ownership or attempts to modernize it for more contemporary appeal. In 2007, they updated their primary wordmark logo by removing some elements from previous versions, such as changing from serifed letters (letters with small strokes) to sans-serifed ones (without). They also removed any gradients used within colors so that it would look better when printed on different materials like t-shirts or hats without losing its detail or vibrancy.

Today, although there are minor differences between old and new designs, the overall shape remains largely unchanged since its inception almost 60 years ago, making it one of the longest-standing professional sports logos still used today. It serves as an emblem representing strength and resilience throughout decades worth of change while remaining true to core values associated with being a part proud city like Pittsburgh itself: hard work, dedication & loyalty - all qualities embodied within Steelers nation worldwide!