在世界历史年表社科院的PDF文献中，基辅罗斯的盛衰，如同一幅动人画卷，在近代卷77中展开。斯拉夫人自古就居住于欧洲东部独联体境内，以其高大威猛、吃苦耐劳著称。公元8、9世纪，他们结束了原始氏族生活，建立了公国，其中南方的基辅和北方的诺夫哥罗德是最为强盛的地方。奥列格王公统一了两地，成为第一位“罗斯大公”，他的统治时期见证了一系列扩张与掠夺，这些活动逐渐将基辅罗斯发展成欧洲的一股重要力量。

然而，奥列格王公未能完成他统一全欧洲梦想便去世，他之子伊戈尔继位，但似乎更加坚持父亲喜爱扩张和掠夺的本性。他穷兵黩武，将国内百姓置于水深火热之中。但伊戈尔并未意识到自己的错误，而是继续加剧剥削，使得民心涣散，最终在一次巡行中遭到了村民们愤怒反击，一棒子打死。

随后，大公之妻摄政女王联合亲信大臣立幼子斯维雅托斯拉夫为继承人，她首先派出军队剿灭“刁民”，这场战争导致德列夫利安人的大量牺牲。大公即位后，更崇尚武功，并与东罗马帝国结盟共同对付保加利亚，但这一胜利却让他产生了更大的野心，想要征服更多珍宝-rich lands and riches, including Greek gold, Czech silver, Hungarian horses, and Russian furs. Alas, his dream was shattered when East Roman Empire betrayed him in a surprise attack during the retreat.

Despite the heroic efforts of later rulers like Igor Svyatoslavich who fought against the Polovets people in 1185 AD with unwavering dedication to their country's cause, ultimately failed due to insurmountable odds. The decline of Kiev Rus' was inevitable as it succumbed to internal strife and external pressures.

Although Kiev Rus' has vanished into history books, its legacy lives on as a cultural cradle for Russians, Ukrainians and Belarusians alike.