KnowledgeKnowledge of historyHistory belongs to the general knowledgeGeneral knowledge of all researchersResearcher and is, therefore, essential for understanding the present and envisioning the future. We present the historyHistory of information retrievalInformation retrieval and the writingWriting (of a paper) of scientific papers. Many modern conceptsConcept were invented before the scientific revolutionScientific revolution of the 1600s, but their significanceSignificance was not widely understood. GalileoGalileo, Francis BaconBacon, F., Rene DescartesDescartes, R., and Isaac NewtonNewton, I. developed the modern analytical thinkingAnalytical thinking combining rationalismRationalism and empiricismEmpiricism. The newest idea is the systemSystem conceptConcept of the last century by Ludwig von BertalanffyBertalanffy, L. von., Norbert WienerWiener, N., Kenneth E. BouldingBoulding, K. E., and many others since about 1950. Analytical thinkingAnalytical thinking is about 400 years old, but systems thinkingSystems thinking is about 75 years old.