<P> In Slavic languages, some of the names correspond to numerals after Sunday: compare Russian vtornik "Tuesday" and vtoroj "the following", chetverg "Thursday" and chetvertyj "the fourth", pyatnitsa "Friday" and pyatyj "the fifth"; see also the Notes . </P> <Table> <Tr> <Th> Day Number From One </Th> <Th> Monday Day One </Th> <Th> Tuesday Day Two </Th> <Th> Wednesday Day Three </Th> <Th> Thursday Day Four </Th> <Th> Friday Day Five </Th> <Th> Saturday Day Six </Th> <Th> Sunday Day Seven </Th> </Tr> <Tr> <Th> ISO 8601 #</Th> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 5 </Td> <Td> 6 </Td> <Td> 7 </Td> </Tr> <Tr> <Th> Russian </Th> <Td> понедельник ponedel'nik </Td> <Td> вторник vtornik </Td> <Td> среда sreda </Td> <Td> четверг chetverg </Td> <Td> пятница pyatnitsa </Td> <Td> суббота subbota </Td> <Td> воскресенье voskresen'ye </Td> </Tr> <Tr> <Th> Belarusian </Th> <Td> панядзелак panyadzelak </Td> <Td> аўторак awtorak </Td> <Td> серада serada </Td> <Td> чацвер chats'ver </Td> <Td> пятніца pyatnitsa </Td> <Td> субота subota </Td> <Td> нядзеля nyadzelya </Td> </Tr> <Tr> <Th> Ukrainian </Th> <Td> понедiлок ponedilok </Td> <Td> вiвторок vivtorok </Td> <Td> середа sereda </Td> <Td> четвер chetver </Td> <Td> п'ятниця p'yatnitsya </Td> <Td> субота subota </Td> <Td> недiля nedilya </Td> </Tr> <Tr> <Th> Bulgarian </Th> <Td> понеделник ponedelnik </Td> <Td> вторник vtornik </Td> <Td> сряда sryada </Td> <Td> четвъртък chetvărtăk </Td> <Td> петък petăk </Td> <Td> събота săbota </Td> <Td> неделя nedelya </Td> </Tr> <Tr> <Th> Polish </Th> <Td> poniedziałek </Td> <Td> wtorek </Td> <Td> środa </Td> <Td> czwartek </Td> <Td> piątek </Td> <Td> sobota </Td> <Td> niedziela </Td> </Tr> <Tr> <Th> Kashubian </Th> <Td> pòniedzôłk </Td> <Td> wtórk </Td> <Td> strzoda </Td> <Td> czwiôrtk </Td> <Td> piątk </Td> <Td> sobòta </Td> <Td> niedzela </Td> </Tr> <Tr> <Th> Slovak </Th> <Td> pondelok </Td> <Td> utorok </Td> <Td> streda </Td> <Td> štvrtok </Td> <Td> piatok </Td> <Td> sobota </Td> <Td> nedeľa </Td> </Tr> <Tr> <Th> Czech </Th> <Td> pondělí or pondělek </Td> <Td> úterý or úterek </Td> <Td> středa </Td> <Td> čtvrtek </Td> <Td> pátek </Td> <Td> sobota </Td> <Td> neděle </Td> </Tr> <Tr> <Th> Slovene </Th> <Td> ponedeljek </Td> <Td> torek </Td> <Td> sreda </Td> <Td> četrtek </Td> <Td> petek </Td> <Td> sobota </Td> <Td> nedelja </Td> </Tr> <Tr> <Th> Bosnian </Th> <Td> ponedjeljak </Td> <Td> utorak </Td> <Td> srijeda </Td> <Td> četvrtak </Td> <Td> petak </Td> <Td> subota </Td> <Td> nedjelja </Td> </Tr> <Tr> <Th> Croatian </Th> <Td> ponedjeljak </Td> <Td> utorak </Td> <Td> srijeda </Td> <Td> četvrtak </Td> <Td> petak </Td> <Td> subota </Td> <Td> nedjelja </Td> </Tr> <Tr> <Th> Serbian </Th> <Td> понедељак ponedeljak </Td> <Td> уторак utorak </Td> <Td> среда sreda </Td> <Td> четвртак četvrtak </Td> <Td> петак petak </Td> <Td> субота subota </Td> <Td> недеља nedelja </Td> </Tr> <Tr> <Th> Macedonian </Th> <Td> понеделник ponedelnik </Td> <Td> вторник vtornik </Td> <Td> среда sreda </Td> <Td> четврток chetvrtok </Td> <Td> петок petok </Td> <Td> сабота sabota </Td> <Td> недела nedela </Td> </Tr> <Tr> <Th> Lithuanian </Th> <Td> pirmadienis </Td> <Td> antradienis </Td> <Td> trečiadienis </Td> <Td> ketvirtadienis </Td> <Td> penktadienis </Td> <Td> šeštadienis </Td> <Td> sekmadienis </Td> </Tr> <Tr> <Th> Latvian </Th> <Td> pirmdiena </Td> <Td> otrdiena </Td> <Td> trešdiena </Td> <Td> ceturtdiena </Td> <Td> piektdiena </Td> <Td> sestdiena </Td> <Td> svētdiena </Td> </Tr> <Tr> <Th> Hungarian </Th> <Td> hétfő </Td> <Td> kedd </Td> <Td> szerda Slavic </Td> <Td> csütörtök Slavic </Td> <Td> péntek Slavic </Td> <Td> szombat Slavic </Td> <Td> vasárnap </Td> </Tr> <Tr> <Th> Estonian </Th> <Td> esmaspäev </Td> <Td> teisipäev </Td> <Td> kolmapäev </Td> <Td> neljapäev </Td> <Td> reede </Td> <Td> laupäev </Td> <Td> pühapäev </Td> </Tr> <Tr> <Th> Mongolian (numerical) </Th> <Td> нэг дэх өдөр neg dekh ödör </Td> <Td> хоёр дахь өдөр hoyor dahi ödör </Td> <Td> гурав дахь өдөр gurav dahi ödör </Td> <Td> дөрөв дэх өдөр döröv dekh ödör </Td> <Td> тав дахь өдөр tav dahi ödör </Td> <Td> хагас сайн өдөр hagas sayn ödör </Td> <Td> бүтэн сайн өдөр büten sayn ödör </Td> </Tr> <Tr> <Th> Mongolian (Tibetan) </Th> <Td> даваа davaa </Td> <Td> мягмар myagmar </Td> <Td> лхагва lhagva </Td> <Td> пүрэв pürev </Td> <Td> баасан baasan </Td> <Td> бямба byamba </Td> <Td> ням nyam </Td> </Tr> <Tr> <Th> Luo </Th> <Td> Wuok tich </Td> <Td> Tich ariyo </Td> <Td> Tich adek </Td> <Td> Tich ang'uen </Td> <Td> Tich abich </Td> <Td> Chieng' ngeso </Td> <Td> Juma pil </Td> </Tr> <Tr> <Th> Tok Pisin (Melanesian Pidgin) </Th> <Td> mande </Td> <Td> tunde </Td> <Td> trinde </Td> <Td> fonde </Td> <Td> fraide </Td> <Td> sarere </Td> <Td> sande </Td> </Tr> <Tr> <Th> Apma (Vanuatu) </Th> <Td> ren bwaleh / mande </Td> <Td> ren karu </Td> <Td> ren katsil </Td> <Td> ren kavet </Td> <Td> ren kalim </Td> <Td> lesaare </Td> <Td> sande </Td> </Tr> </Table> <Tr> <Th> Day Number From One </Th> <Th> Monday Day One </Th> <Th> Tuesday Day Two </Th> <Th> Wednesday Day Three </Th> <Th> Thursday Day Four </Th> <Th> Friday Day Five </Th> <Th> Saturday Day Six </Th> <Th> Sunday Day Seven </Th> </Tr> <Tr> <Th> ISO 8601 #</Th> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 5 </Td> <Td> 6 </Td> <Td> 7 </Td> </Tr>

Where do the french days of the week come from