Today marks 73 years since construction started on the TTC's original Yonge Line from Eglinton to Union. 🚇 This was Canada’s first subway line, the project officially started on September 8, 1949 to plenty of fanfare. Learn more: https://bit.ly/3wBAUxM Have some cool TTC pics from the past? Share them with the hashtag #TTCarchives for a chance to be featured on our channel 📷 #TBT #ThrowbackThursday #TorontoTransit #TTChistory #photography #CityofToronto #TorontoArchives