vandalism by please stop it would stop vandalising this article people have invested a lot of time and effort to improve this article it doesn't help if you keep vandalising it in future if you have something positive to add to this article please discuss it in the talk page i have to spend hours undoing what you have just done citing several sources some of which are unreliable about one particular issue which has already been addressed and sourced with notable sources is one thing deleting edits with notable sources and then copying and pasting those sources to make a point is another you wanted the article to talk about serer nile valley migration that had already been discussed several times with notable sources like gravrand cheikh anta diop etc you also wanted the ethnonym of serer to reflect the thesis of diop the article already did that with notable sources including diop himself if only you took the time to read the whole article you would have realised that all these had been addressed however you should also appreciate that not every scholar and certainly not the ultra traditionalist serer who wants nothing to do with egypt agree with diop and in fact his thesis were rebutted by several scholars including schuh etc these are relevant view points which should also be taken into account in other to avoid bias i will now respond to the sources that you have provided link have you realised that this source is not credible contrary to all the sources cited have you also realised that the author referred to the kingdoms of sine and saloum as wolof states even the least verse on senegambian history can easily find out for themselves that the kingdom of sine and kingdom of saloum were serer kingdoms not wolof never mind a supposed scholar further all the sources historical and archaeological evidence shows that the senegambian stone circles were built by the serer people see gravrand pangool gamble salmon and njie burke and else and f richard since they were built by the serers and evidence have shown that they are built well before the th century how then could the serers have migrated into the area into the th century that doesn t make sense now the serers may have migrated to from the nile valley as implied by henri gravrand in la civilisation sereer pangool which is one of the sources cited in the article but as noted by gravrand if they did came from the nile it was more than thousand years ago and certainly not the th century further as demonstrated by gamble salmon and njie the serer are the oldest inhabitants of senegambia others later moved in this backs up archealogical source backs up gravrand kleine richard and so on if your source was referring to the guelwars of kaabu coming from kaabu to sine in the th century at least i could understand that because it was at that time the battle of turubang occurred as stated by sarr becker and others even the wolofs were already present long before the th century never mind the serer people who have been present for thousand of years further as substantiated in the article with credible sources which all backs up each other the almoravid wars on takrur due to religion islam led to the serers of takrur who were finally defeated in battle to leave takrur and headed south that was in the th century during abu bakr ibn umar and war jabi even those takrurien serers came south long before the th century to join their other serer relatives see daggs link this link tells us about the meaning of serer according to pierret which tallies with diop the article had already address this point with notable sources as evident in the article however since there are controversies regarding the meaning of the word it is relevant to address those as well furthermo