minhxthanh/Vietnam-History-500K-En

English 500,000-sample Vietnamese history dataset, with ≈78% chain-of-thought (analysis) and ≈22% final-only answers. Format & coverage Scope: 905–2025 (events, figures, dynasties, wars, reforms, culture, documents) Structure: ShareGPT/ChatML-style messages With reasoning (≈78%): system → user → assistant (analysis) → assistant (final) Final-only (≈22%): system → user → assistant (final) Learn more on GitHub: https://github.com/MinhxThanh/Vietnam-History-Chat-Datasets