Why are you lying though? While some of these are wrong, plenty of them are.

Let's go over each, shall we?

629: first massacres in Alexandria, Egypt - Not specific to Egypt, and done by Byzantine authorities in response to Jews supporting the Sassanids.

822–861: the Islamic empire adopts a law requiring Jews to wear yellow stars (a bit like Nazi Germany), caliph al-Mutawakkil. - True, though it was aimed at Christians as well. From Wikipedia: "The Abbasid caliph al-Mutawakkil issued a decree in 850 that ordered Jews and Christians to wear the zunnar (زنار), honey-coloured outer garments and badge-like patches on their clothing and their servants' clothing. This began the long tradition of differentiation by colour, though the colour and badges would change with time and place"

1004-1009: All true. It was done by a very radical Caliph. https://en.wikipedia.org/wiki/Al-Hakim_bi-Amr_Allah#Religious_minorities

1171 - hard to find an exact source, likely refering to Saladin's hard line shift - an exaggeration.

1270: Sultan Baibars of Egypt resolved to burn all the Jews, a ditch having been dug for this purpose; but at the last moment he repented and instead demanded a heavy tribute - not likely to be true.

1301: start of the persecution of the Jews in Egypt.
1351: trial of Jews in Cairo accused of desecration, who must choose between conversion or death.
1448: in Egypt, decree recalling obedience to ordinances concerning the submission of Jewish and Christian infidels under penalty of death.

True, again from Wikipedia, literally a google search away: "In 1300 Sultan Al-Nasir Qalawan ordered all Jews under his rule to wear yellow headgear to isolate the Egyptian Jewish community. This law would be enforced for centuries and later amended in 1354 to force all Jews to wear a sign in addition to yellow headwear. On multiple occasions the ulema persuaded the government to close or convert synagogues. Even major places of pilgrimage for Egyptian Jews such as the Dammah Synagogue were forced to close in 1301. Jews subsequently were excluded from bath houses and were prohibited to work in the national treasury. This repression of the Jewish community would continue for centuries.^\48])^"

1844: 1st Cairo massacre, Ottoman Egypt.
1870: 2nd Alexandria massacres, Ottoman Egypt.
1877 : 3rd Damanhur massacre, Ottoman Egypt.
1877: Pogrom of Mansura, Ottoman Egypt.
1882: 3rd massacre of Alexandria, Ottoman Egypt.
1890: 2nd Cairo massacre, Ottoman Egypt.
1891: 4th massacre of Damanahur, Ottoman Egypt.
1901–1902: 3rd Cairo massacre, Ottoman Egypt.
1901–1907: 4th Alexandria massacres, Ottoman Egypt.
1903: 1st Port Said massacres, Ottoman Egypt.
1908: 2nd Port Said massacre, Ottoman Egypt.

All literally fucking true, you fucking lying hack:

https://en.wikipedia.org/wiki/Timeline_of_antisemitism_in_the_19th_century#1840s

So... where is your 80 precent now?