create_artifact_byz_throne_effect

create_artifact_byz_throne_effect = {
	# Get the character the artifact is being made for.
	$OWNER$ = { save_scope_as = owner }
	# Not really used, but if we don't set the scopes we get errors in the feature selection
	set_artifact_rarity_illustrious = yes

	# Create the artifact
	create_artifact = {	
		name = artifact_byz_throne_name
		description = artifact_byz_throne_description
		type = throne_special
		visuals = ep3_throne_of_solomon
		wealth = scope:wealth
		quality = scope:quality
		template = byz_throne_template
		history = {
			type = created_before_history
		}
		modifier = byz_throne_modifier
		save_scope_as = newly_created_artifact
		decaying = no
	}

	scope:newly_created_artifact = {
		set_variable = { name = historical_unique_artifact value = yes }
		#set_variable = byz_throne_of_solomon
		save_scope_as = epic
		save_scope_value_as = {
			name = throne
			value = yes
		}
		add_artifact_title_history = {
			target = title:e_byzantium
			date = 940.1.1
		}
	}
}

As written in game/common/scripted_effects/01_exp1_historical_artifacts_creation_effect.txt.