In ancient times, the Heroopolite Gulf was the

Gulf of Suez The Gulf of Suez ( ar, خليج السويس, khalīǧ as-suwais; formerly , ', "Sea of Calm") is a gulf at the northern end of the Red Sea, to the west of the Sinai Peninsula. Situated to the east of the Sinai Peninsula is the smaller Gulf of ...

in the vicinity of Heroopolis; there is evidence indicating that the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...

and its

extended as far northward as the

Bitter Lakes The Great Bitter Lake ( ar, البحيرة المرة الكبرى; transliterated: ''al-Buḥayrah al-Murra al-Kubrā'') is a large saltwater lake in Egypt that is part of the Suez Canal. Before the canal was built in 1869, the Great Bitter L ...

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a List of transcontinental countries, transcontinental country spanning the North Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via a land bridg ...

.Rappoport, S. (Doctor of Philosophy, Basel). ''History of Egypt'' (1904), Volume 3 Chapter V: "The Waterways of Egypt," pages 250-253. London: The Grolier Societ

/ref>

Ptolemy II Philadelphus ; egy, Userkanaenre Meryamun Clayton (2006) p. 208 , predecessor = Ptolemy I , successor = Ptolemy III , horus = ''ḥwnw-ḳni'Khunuqeni''The brave youth , nebty = ''wr-pḥtj'Urpekhti''Great of strength , gold ...

opened a west–east "Suez" canal in Heroopolis (c. 270-269 BC) F. W. Walbank, ''The Hellenistic World'' 1981:202.

's lifespan was 309 BC–246 BC. and constructed a navigable lock, with

sluice Sluice ( ) is a word for a channel controlled at its head by a movable gate which is called a sluice gate. A sluice gate is traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway and can be considered ...

s, between the Heroopolite Gulf and the

so as to allow the passage of vessels but prevent salt water from the

from mingling with the fresh water in the canal. Ancient cities which were at one time situated along the coastline of the Heroopolite Gulf include Arsinoe, Heroopolis and

Olbia Olbia (, ; sc, Terranoa; sdn, Tarranoa) is a city and commune of 60,346 inhabitants (May 2018) in the Italian insular province of Sassari in northeastern Sardinia, Italy, in the historical region of Gallura. Called ''Olbia'' in the Roman age ...

Notes

{{Use dmy dates, date=March 2017 Heroopolite Gulf