When did National Geographic first adopt its iconic yellow rectangular frame as part of its brand identity?

National Geographic is one of the most recognizable brands in wildlife conservation and education. Their iconic yellow rectangular frame has become synonymous with stunning wildlife photography and nature documentaries. This poll tests your knowledge about this famous brand element that has helped position National Geographic as a leader in wildlife content for decades. Do you know when this distinctive visual identity element was first introduced?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

1888, when the first National Geographic magazine was published
1903, as part of the first wildlife photography issue
1979, as part of a major brand redesign to boost magazine sales
2001, when National Geographic launched its television channel