diff --git a/cypress/e2e/chronology.cy.js b/cypress/e2e/chronology.cy.js
index a8b3c31..af317d9 100644
--- a/cypress/e2e/chronology.cy.js
+++ b/cypress/e2e/chronology.cy.js
@@ -1,75 +1,139 @@
 describe('Chronology', () => {
     // see #11  
-    describe.only('Andreas Gryphius', () => {
+    describe('Andreas Gryphius', () => {
+        // DP: add sort: 'year' to qs for sorted results
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
                     lookfor: 'Andreas Gryphius',
-                    type: 'Author'
+                    type: 'allFields'
                 }
             })
         })
 
-        it('should ... ', () => {
-            cy.get('.resultlist')
+        // Items without a year in resultlist-data exist but quite rare 
+        // DP: sometimes the date in resultlist-data conflicts with the exact date in details view
+        // which can impact the percieved sorting
+        // see #35
+        it.skip('Top 1 should be published after 2020', () => {
+            cy.get('.resultlist-data')
+                .first()
+                .contains(/202\d/)
         })
     })
 
-    describe('oliver heaviside', () => {
+    describe('Klaus Hurrelmann, Gudrun Quenzel: Lebensphase Jugend', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'oliver heaviside',
-                    type: 'Author'
+                    lookfor: 'Klaus Hurrelmann, Gudrun Quenzel: Lebensphase Jugend',
+                    type: 'allFields'
                 }
             })
         })
 
-        it('should ...', () => {
-            cy.get('.resultlist')
+        // 2022 ed. PPN 1739067762
+        // 2012 ed. PPN 682815853
+        it('Latest edition should be before earlier edition', () => {
+            // pick 2022 edition
+            cy.get('[href*="1739067762"]')
+                // select ranking number from hit list 
+                .parents('[id^="result"]')
+                .find('.record-number')
+                .invoke('text')
+                .then(($num1) => {
+                    // turn into integer
+                    const num1 = parseInt($num1)
+
+                    // repeat for 2012 edition
+                    cy.get('[href*="682815853"]')
+                        .parents('[id^="result"]')
+                        .find('.record-number')
+                        .invoke('text')
+                        .then(($num2) => {
+                            const num2 = parseInt($num2)
+                            // make sure 1 < 2
+                            expect(num1).to.be.lessThan(num2)
+                        })
+                })
         })
     })
 
-    describe('Klaus Hurrelmann, Gudrun Quenzel: Lebensphase Jugend', () => {
+    describe('Lehrbuch Organisationspsychologie', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'Klaus Hurrelmann, Gudrun Quenzel: Lebensphase Jugend',
-                    type: 'allFields'
+                    lookfor: 'Lehrbuch Organisationspsychologie',
+                    type: 'Title'
                 }
             })
         })
+        // 2007 ed PPN 537598197
+        // 1995 ed PPN 182859061
+        // 2004 ed PPN 366403265
+        // see #35
+        it.skip('Later editions should be ranked higher', () => {
+            cy.get('[href*="537598197"]')
+                .parents('[id^="result"]')
+                .find('.record-number')
+                .invoke('text')
+                .then(($num1) => {
+                    const num1 = parseInt($num1)
 
-        it('should ...', () => {
-            cy.get('.resultlist')
+                    cy.get('[href*="366403265"]')
+                        .parents('[id^="result"]')
+                        .find('.record-number')
+                        .invoke('text')
+                        .then(($num2) => {
+                            const num2 = parseInt($num2)
+
+                            cy.get('[href*="182859061"]')
+                                .parents('[id^="result"]')
+                                .find('.record-number')
+                                .invoke('text')
+                                .then(($num3) => {
+                                    const num3 = parseInt($num3)
+
+                                    expect(num2).to.be.lessThan(num3)
+                                })
+
+                            expect(num1).to.be.lessThan(num2)
+                        })
+                })
         })
     })
 
-    describe('Lehrbuch Organisationspsychologie', () => {
+    // see #36
+    describe('emanzipation juden', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'Lehrbuch Organisationspsychologie',
+                    lookfor: 'emanzipation juden',
                     type: 'allFields'
                 }
             })
         })
 
-        it('should ...', () => {
+        it.skip('should ...', () => {
             cy.get('.resultlist')
         })
     })
 
-    describe('emanzipation juden', () => {
+    // Sorting by date decreases relevance 
+    // 608 hits total but many do not contain the search terms in the title 
+    // or are about later periods all together
+    // why is 130141674 shown ?
+    // 
+    describe.only('Kulturgeschichte deutsches Kaiserreich', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'emanzipation juden',
+                    lookfor: 'Kulturgeschichte  deutsches Kaiserreich',
                     type: 'allFields'
                 }
             })
@@ -80,12 +144,12 @@ describe('Chronology', () => {
         })
     })
 
-    describe('Kulturgeschichte  deutsches Kaiserreich', () => {
+    describe('Caral America', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'Kulturgeschichte  deutsches Kaiserreich',
+                    lookfor: 'Caral America',
                     type: 'allFields'
                 }
             })
@@ -96,12 +160,12 @@ describe('Chronology', () => {
         })
     })
 
-    describe('Caral America', () => {
+    describe('jugendliteratur mittelalter roman', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'Caral America',
+                    lookfor: 'jugendliteratur mittelalter roman',
                     type: 'allFields'
                 }
             })
@@ -112,12 +176,12 @@ describe('Chronology', () => {
         })
     })
 
-    describe('jugendliteratur mittelalter roman', () => {
+    describe('Griechische Mythologie', () => {
         beforeEach(() => {
             cy.visit({
                 url: '/Results',
                 qs: {
-                    lookfor: 'jugendliteratur mittelalter roman',
+                    lookfor: 'Griechische Mythologie',
                     type: 'allFields'
                 }
             })