This study conducted a comprehensive historical analysis of education reforms in Uganda from 1922 to 2025 to examine why quality improvement remained elusive despite sustained reform efforts spanning over a century. Employing a mixed-methods convergent parallel design, the research collected quantitative data from 384 key informants including policymakers, teachers, and education officers selected through stratified random sampling, and qualitative data from 45 in-depth interviews and 8 focus group discussions with education stakeholders selected through purposive sampling, complemented by documentary analysis of 156 policy documents, education acts, and commission reports. Data analysis utilized descriptive statistics, one-way ANOVA with post-hoc Tukey tests, multiple regression analysis, chi-square tests, and thematic analysis to address three specific objectives: identifying major reform initiatives across political periods, assessing reform outcomes on quality indicators, and examining systemic challenges hindering effectiveness. The findings revealed statistically significant differences in quality indicators across historical periods, with learning achievement scores declining from 58.3 during the colonial period to 48.4 during the NRM early period before recovering to 51.6 in the contemporary era (F = 12.47, p < 0.001), while educational equity improved consistently from 0.32 to 0.67 (F = 64.38, p < 0.001), representing the equity-quality trade-off that characterized post-independence reforms. Multiple regression analysis demonstrated that political stability (β = 0.412, p < 0.001) and stakeholder involvement (β = 0.328, p < 0.001) were stronger predictors of quality outcomes than financial investment (β = 0.284, p < 0.001), while curriculum reform intensity showed no significant relationship (p = 0.104), with the overall model explaining 64.7% of quality variance (R² = 0.647, p < 0.001). Chisquare analysis revealed that access expansion reforms achieved stated objectives 72.3% of the time compared to only 18.6% for curriculum reforms and 14.6% for quality assurance mechanisms (χ² = 127.36, p < 0.001, Cramér's V = 0.389), confirming that Uganda succeeded in expanding reach but failed proportionately in improving quality. Stakeholder perception analysis exposed significant divergence between policymakers and implementers regarding consultation (policymakers M = 3.12 vs. teachers M = 4.29, F = 92.15, p < 0.001, η² = 0.326) and political interference (policymakers M = 2.94 vs. teachers M = 4.15, F = 76.42, p < 0.001, η² = 0.287), revealing disconnect between policy design and implementation realities. The study concluded that quality remained elusive due to top-down reform processes excluding frontline implementers, political instability during critical periods, inadequate long-term commitment favoring frequent policy changes over sustained implementation, insufficient capacity at implementation levels, and resource constraints exacerbated by rapid access expansion without proportionate quality investments. The research recommended adopting participatory bottom-up reform design with mandatory 12-18 month consultation periods, prioritizing long-term political and financial commitment through statutory 10-year strategic plans protected from political interference, and simultaneously addressing resource inequities through weighted funding formulas favoring disadvantaged districts while building implementation capacity through systematic training and technologyenabled monitoring systems. This study contributed original insights into the historical patterns, contextual factors, and systemic challenges that shaped reform outcomes across Uganda's century-long educational journey, providing evidence-based guidance for more effective quality improvement strategies.