The very first transcatheter intervention to treat congenital cardiac defects was reported by Rubio-Alvarez et al. [1] in 1953, when they performed pulmonary valvotomy using a modified ureteral catheter. A decade later Dotter, Rashkind, Porstmann and their associates described progressive dilatation of peripheral arterial stenotic lesions, balloon atrial septostomy and transcatheter occlusion of patent ductus arteriosus, respectively. The purpose of this review is to present these and other historical developments of catheter-based interventions in the treatment of heart disease in children. Historical aspects of 1. balloon angioplasty/valvuloplasty of valvar pulmonary stenosis, valvar aortic stenosis, fixed subaortic stenosis, native aortic coarctation, postsurgical aortic recoarctation, branch pulmonary artery stenosis, mitral stenosis, cyanotic heart defects with pulmonary oligemia, stenotic bioprosthetic valves, congenital tricuspid and mitral stenosis, truncal valve stenosis, subvalvar pulmonary stenosis, supravalvar pulmonary stenosis (congenital membranous or postoperative), stenosis of the aorta (Leriche syndrome, atherosclerotic and Takayasu's arteritis), baffle obstruction following Mustard or Senning procedure (both systemic and pulmonary venous obstructions), superior and inferior vena caval obstructions, pulmonary vein stenosis, pulmonary veno-occlusive disease, vertical vein stenosis in total anomalous pulmonary venous connection, pulmonary venous obstruction following repair of total anomalous pulmonary venous obstruction, specially designed pulmonary artery bands, cor triatriatum, cor triatriatum dexter, and coronary artery stenotic lesions that develop after Kawasaki disease; 2. stents to enlarge stenotic lesions of branch pulmonary arteries, systemic veins, systemic and pulmonary venous pathways after Mustard procedure, aorta, right ventricular outflow conduits, pulmonary veins and native right ventricular outflow tract or to keep the ductus arteriosus open in patients with pulmonary atresia and hypoplastic left heart syndrome and maintaining patency of stenosed aorto-pulmonary collateral vessels, surgically created but obstructed shunts or acutely thrombosed shunts as well as covered stents; 3. transcatheter occlusion of cardiac defects comprising of atrial septal defect, patent foramen ovale, patent ductus arteriosus, ventricular septal defect and aortopulmonary window and 4. catheter-based atrial septostomy such as Rashkind balloon atrial septostomy, Park's blade atrial septostomy, balloon angioplasty of the atrial septum, trans-septal puncture and atrial septal stents were presented.