Two free walking tours will be held at Merthyr Dyfan Cemetery to examine the background behind the 1919 race riots in Barry.
In June 1919, rioting broke out in several dock towns - including Newport, Cardiff and Barry, where the fatal stabbing of a labourer in Cadoxton led to three days of unrest.
The walking tours will examine how the riots were driven by high unemployment, insecurity and a fear of foreigners, witnessed killings, mobs on the rampage and a blind hatred for anyone of a different colour or creed.

The free event on Sunday 19th October, held by Barry Town Council and the Victorian Barry Experience as part of Black History Month, will be followed by refreshments at Merthyr Dyfan Chapel.
Donations will also be taken for the Town Mayor's chosen charities, Mind in the Vale and Valeways.
Talks begin at 12.30pm and 2pm but advance booking is required via Barry Town Council on Ticketmaster.

Dispersal Order issued at Cosmeston as council warns of ‘extremely dangerous’ behaviour
Three Rescues in 24 Hours as RNLI Barry Dock Urges Caution Around Sully Island
Police Investigate ATM Theft in Cowbridge After Pensioner Targeted
Break‑In at St Athan Community Centre Forces Volunteers to Divert Funds from Upcoming Events
Vale Students Celebrate Strong A and AS Level Results
Llantwit Major School Celebrates Record-Breaking A Level Success
Senedd recess: What have the Welsh political parties been up to so far?
Vueling withdraws winter flights to Aicante this winter
Playground in Barry forced to close after fire damages equipment
Campaigners Take Fight for Fairer Pathways in Welsh Women’s Football to Parliament
Vale Councillor Gwyn John Launches His First Novel at Llantwit Major Book Signing
Pink poppy display commences with celebration of life
Former Barry office block converted into new homes for people at risk of homelessness
Welsh Government publishes independent report on Level 4 intervention at Cardiff and Vale UHB
Three CoastSnap stations set to be installed along the Glamorgan Heritage Coast
Daffodil Runner statue installed at Marie Curie Hospice in Penarth
Woman Dies After Incident in Leckwith as Police Investigation Continues
Vale entrepreneur wins national Innovate UK award for sustainable construction technology
Cardiff Airport retains top accessibility rating as regulator reports record demand for assistance
Open Doors event to showcase hidden world of Glamorgan Archives