The article provides a historical overview of the discovery and research on gibberellins (GAs), a group of plant hormones named after the phytopathogenic fungus *Gibberella fujikuroi*. GAs were first isolated in the 1930s and identified as the second endogenous growth regulator after auxin. The article highlights the early efforts to establish the biosynthesis and catabolism pathways of GAs, the characterization of enzymes involved in GA metabolism, and the identification of corresponding genes. Recent studies have focused on the identification of GA receptors, the molecular mechanisms of DELLA-mediated transcription reprogramming, and how DELLAs integrate multiple signaling pathways to regulate plant development in response to internal and external cues. The article also discusses the role of GA transporters in plant development and the advances in understanding GA metabolism, signaling, and transport. Key findings include the identification of GA-responsive dwarf mutants, the cloning of GA-metabolic enzymes, and the regulation of GA metabolism by developmental and environmental cues. The article further explores the GA-GID1-DELLA signaling module and its interaction with various internal and external cues, as well as the diverse functions of DELLAs in regulating plant growth and development.The article provides a historical overview of the discovery and research on gibberellins (GAs), a group of plant hormones named after the phytopathogenic fungus *Gibberella fujikuroi*. GAs were first isolated in the 1930s and identified as the second endogenous growth regulator after auxin. The article highlights the early efforts to establish the biosynthesis and catabolism pathways of GAs, the characterization of enzymes involved in GA metabolism, and the identification of corresponding genes. Recent studies have focused on the identification of GA receptors, the molecular mechanisms of DELLA-mediated transcription reprogramming, and how DELLAs integrate multiple signaling pathways to regulate plant development in response to internal and external cues. The article also discusses the role of GA transporters in plant development and the advances in understanding GA metabolism, signaling, and transport. Key findings include the identification of GA-responsive dwarf mutants, the cloning of GA-metabolic enzymes, and the regulation of GA metabolism by developmental and environmental cues. The article further explores the GA-GID1-DELLA signaling module and its interaction with various internal and external cues, as well as the diverse functions of DELLAs in regulating plant growth and development.