Land Day is held in remembrance of an incident in which Israeli forces fatally shot six Palestinians on March 30, 1976, as the Palestinians were protesting Israeli land seizures.
In all, 34 Palestinians were killed in the past two weeks, 27 during protests.
Sumaya Abu Awad, 36, who attended the protest with her three daughters and son, said, "I am not afraid of death because there is no life in Gaza already".
A Palestinian wounded by Zionist gunfire during clashes in the Gaza Strip on Friday has died, the local health ministry said.
The ministry says 203 of those hurt were treated at hospitals and the rest at field clinics.
The majority of the fatalities occurred during the demonstrations, while 1,236 have suffered from bullet wounds, according to the Hamas-controlled ministry. The theme of the day for the protests was "Flag Friday" - burning the Israeli flag and raising giant Palestinian flags.
The five representatives issued a statement urging Palestinians to demonstrate nonviolently and Israeli soldiers "to refrain from shooting live ammunition at unarmed Palestinian protesters from hundreds of meters away, across the fence separating the two territories".
Savannah Jewish Federation honors Holocaust victims in remembrance ceremony
Also in attendance were Zohara Boyd and Peter Petschauer, both retired professors with very different histories. He's backed by survey respondents, 93% of whom said it was important to teach about the Holocaust in schools.
Israeli soldiers are firing tear gas and live bullets from across the border fence.
One path toward lifting the blockade would be to have Hamas' political rival, West Bank-based Palestinian President Mahmoud Abbas, take over the Gaza government, but recent Egypt-led talks on such a deal have run aground.
Thousands of demonstrators in the besieged enclave gathered at many locations on the border on the third Great March of Return to demand their right of return to their pre-1948 homes.
They also burned Israeli flags and waved Palestinian flags.
The Israeli military say demonstrators also hurled an explosive device and several fire bombs near the fence. There was a small but significant protest in Sderot-the city most affected by the homemade rockets fired from Gaza-denouncing the IDF's actions there and calling for an end to the Israeli military blockade of Gaza.
Palestinians throw rocks as they set tires on fire in response to Israel's intervention during a demonstration "Flag Friday" within the "Great March of Return".
No Israelis have been killed during the protests.
Israel army spokesman in Arabic Maj Avichai Adraee called on Gazans to refrain from co-operating with Hamas.