diff --git a/app/backend/src/routes/history.ts b/app/backend/src/routes/history.ts
new file mode 100644
index 0000000..92a6914
--- /dev/null
+++ b/app/backend/src/routes/history.ts
@@ -0,0 +1,119 @@
+import type { FastifyInstance, FastifyReply } from 'fastify';
+import { z } from 'zod';
+import { prisma } from '../db.js';
+import { requireAuth } from '../plugins/session.js';
+import { computeStreak, currentStreakIfAlive } from '../lib/persian.js';
+const bodySchema = z.object({
+  articleId: z.string().trim().min(1),
+  progress: z.number().min(0).max(1).optional(),
+});
+
+const listSchema = z.object({
+  page: z.coerce.number().min(1).default(1),
+  limit: z.coerce.number().min(1).max(50).default(20),
+});
+
+function badInput(reply: FastifyReply) {
+  return reply.code(400).send({ error: 'invalid_input' });
+}
+
+export default async function historyRoutes(app: FastifyInstance) {
+  app.post('/api/v1/auth/history', { preHandler: requireAuth() }, async (req, reply) => {
+    const parsed = bodySchema.safeParse(req.body);
+    if (!parsed.success) return badInput(reply);
+    const userId = req.session!.userId;
+    const { articleId, progress = 0 } = parsed.data;
+    const article = await prisma.article.findUnique({ where: { id: articleId }, select: { id: true } });
+    if (!article) return reply.code(404).send({ error: 'not_found' });
+
+    await prisma.readHistory.upsert({
+      where: { userId_articleId: { userId, articleId } },
+      update: { readAt: new Date(), progress: Math.max(progress, 0) },
+      create: { userId, articleId, progress },
+    });
+
+    // Streak logic
+    const user = await prisma.user.findUnique({ where: { id: userId }, select: { streakCount: true, lastReadAt: true } });
+    if (user) {
+      const now = new Date();
+      const newStreak = computeStreak(user.streakCount, user.lastReadAt, now);
+
+      if (newStreak !== user.streakCount || !user.lastReadAt || 
+          new Date(user.lastReadAt).toDateString() !== now.toDateString()) {
+        await prisma.user.update({
+          where: { id: userId },
+          data: { streakCount: newStreak, lastReadAt: now },
+        });
+      }
+    }
+
+    return { ok: true };
+  });
+
+  app.get('/api/v1/auth/streaks', { preHandler: requireAuth() }, async (req) => {
+    const userId = req.session!.userId;
+    const user = await prisma.user.findUnique({ where: { id: userId }, select: { streakCount: true, lastReadAt: true } });
+
+    let currentStreak = currentStreakIfAlive(user?.streakCount ?? 0, user?.lastReadAt ?? null, new Date());
+
+    const unfinished = await prisma.readHistory.findMany({
+      where: { userId, progress: { lt: 0.9, gt: 0.05 } },
+      include: { article: { select: { id: true, slug: true, title: true, summary: true } } },
+      orderBy: { readAt: 'desc' },
+      take: 5,
+    });
+
+    return {
+      streak: currentStreak,
+      lastReadAt: user?.lastReadAt,
+      continueReading: unfinished.map(h => ({
+        id: h.article.id,
+        slug: h.article.slug,
+        title: h.article.title,
+        progress: h.progress,
+      })),
+    };
+  });
+
+  app.get('/api/v1/auth/history', { preHandler: requireAuth() }, async (req, reply) => {
+    const parsed = listSchema.safeParse(req.query);
+    if (!parsed.success) return badInput(reply);
+    const { page, limit } = parsed.data;
+    const userId = req.session!.userId;
+    const [total, rows] = await Promise.all([
+      prisma.readHistory.count({ where: { userId } }),
+      prisma.readHistory.findMany({
+        where: { userId },
+        include: { article: { include: { category: true, author: true } } },
+        orderBy: { readAt: 'desc' },
+        skip: (page - 1) * limit,
+        take: limit,
+      }),
+    ]);
+    return {
+      items: rows.map((row) => ({
+        id: row.id,
+        readAt: row.readAt.toISOString(),
+        time: row.readAt.toLocaleDateString('fa-IR'),
+        article: {
+          id: row.article.id,
+          slug: row.article.slug,
+          title: row.article.title,
+          summary: row.article.summary,
+          categoryName: row.article.category.name,
+          authorName: row.article.author.name,
+          readTime: row.article.readTime,
+        },
+      })),
+      total,
+      page,
+      limit,
+      pages: Math.ceil(total / limit),
+    };
+  });
+
+  app.delete('/api/v1/auth/history', { preHandler: requireAuth() }, async (req) => {
+    await prisma.readHistory.deleteMany({ where: { userId: req.session!.userId } });
+    return { ok: true };
+  });
+}