BARCELONA Spain (Reuters) - Hundreds of thousands of Catalans packed the streets of Barcelona on Thursday to demand the right to vote on a potential split from Spain, their ambitions boosted by an independence referendum scheduled for next week in Scotland.
Participants dressed in red and yellow, the colors of the Catalan flag, and lined up along two of Barcelona's main arteries to form a huge "V" for "vote", visible in aerial footage.
Many wore T-shirts saying "Ara es l'hora" ("Now is the time") in the Catalan language, in a festive atmosphere on Catalonia's national day.
The potential turnout had been an issue of heated public debate in recent weeks. Barcelona police estimated that as many as 1.8 million took part, while a central government spokeswoman put the figure at around half a million.
"We want a say in politics and our future. We've won back our sovereignty (by getting independence on the political agenda) and realized the strength we have, if we mobilize, to change things," said Carme Forcadell, head of the National Catalan Assembly (ANC), one of the organizers of the event.
Catalonia is a wealthy region in Spain's northeast with its own language and culture. Its long-standing independence movement has grown over the last decade, fueled by Spain's economic crisis and a refusal by Madrid to meet regional demands.
The Catalan regional government, which like other Spanish regions has a large degree of autonomy, has called a non-binding referendum on Nov. 9 over whether Catalonia should become a separate state.
The Madrid government says the vote is illegal and cannot go ahead. The issue pits Catalonia against the rest of Spain.
"We don't expect anything good from the Spanish government. All we get is misunderstanding, intolerance, threats and totally anti-democratic attitudes. They've always been like that," said Oscar Sanchez, who is jobless.
"We just want to be treated equally, with respect. Nothing more. We are Catalans, not Spaniards."
Polls show that 80 percent of Catalans want to vote on independence.
Catalonia's campaign has drawn momentum from the coming referendum on whether Scotland should split from the United Kingdom, support for which has gained ground recently to make it a close call.
The government in London opposes Scottish independence, but says it will abide by whatever the voters decide.
The price of Spanish government bonds has been falling as edgy investors trim their holdings before Scotland's vote, where a victory for the nationalists would no doubt fuel Catalonia's demands. [GVD/EUR]
The fact that Scots have been allowed to vote at all was singled out as the main motivation for taking part in Thursday's event, organizers and participants said.
"We don't understand why that is constantly denied. We look up to Scotland," said Victor Panyella, a 50-year-old professor wearing a yellow T-shirt with a red "V" on it.
"They are so lucky to belong to a country that allows that kind of vote."
Artur Mas, head of the Catalan regional government, told reporters the rest of Spain needed to take heed.
"I ask Spain's institutions and especially its government to take good note of the mood on Catalonia's streets," he said.
"What is going on today is not a challenge to the state, it is the clamor of a large part of Catalan society."
An opinion poll for the regional government showed support for an independent state had tripled to 45.2 percent in March 2014 from 13.9 percent in March 2006. Many commentators in Madrid question the way such polls have been carried out.
Spain's state pollster CIS found this year that around 45 percent of Catalans supported full independence, 20 percent would support a federal state and 23 percent backed regional autonomy.
Additional reporting by Inmaculada Sanz; Writing and additional reporting by Elisabeth O'Leary; Editing by Julien Toyer and Andrew Roche